www.lnmao.org, the fastest update to the latest chapters of treasure hunting around the world!

www.lnmao.org, the fastest update to the latest chapters of treasure hunting around the world!

The granite bars at the bottom of the pit were lifted up, exposing a granite slab below.

The granite bars at the bottom of the pit were lifted up, exposing a granite slab below.

In the center of this square and unusually thick stone slab is carved a Martian cross and several mysterious symbols unique to the Knights Templar, which are very eye-catching.

In the center of this square and unusually thick stone slab is carved a Martian cross and several mysterious symbols unique to the Knights Templar, which are very eye-catching.

After the last granite stone was lifted out of the pit and moved outside the prayer house, Ye Tian, ​​who had already tied the safety rope, descended to the bottom of the pit again.

After the last granite stone was lifted out of the pit and moved outside the prayer house, Ye Tian, ​​who had already tied the safety rope, descended to the bottom of the pit again.

He pretended to carefully observe the granite slab at the bottom of the pit and the situation around the slab, then raised his head and said with a smile:

He pretended to carefully observe the granite slab at the bottom of the pit and the situation around the slab, then raised his head and said with a smile:

"Obviously, there is a secret passage under this stone slab, leading deep underground. This place has been closed for a long time. I don't know if there are any traps. For safety reasons, it is best for everyone to exit the prayer house"

"Obviously, there is a secret passage under this stone slab, leading deep underground. This place has been closed for a long time. I don't know if there are any traps. For safety reasons, it is best for everyone to exit the prayer house"

Hearing this, the guys standing on the edge of the pit all nodded and had no different opinions.

Hearing this, the guys standing on the edge of the pit all nodded and had no different opinions.

Afterwards, they exited the prayer room, leaving only Jason and the others to cooperate with Ye Tian.

Afterwards, they exited the prayer room, leaving only Jason and the others to cooperate with Ye Tian.

Next, Ye Tian squatted down, held one side of the granite slab at the bottom of the pit with both hands, and lifted it up with force.

Next, Ye Tian squatted down, held one side of the granite slab at the bottom of the pit with both hands, and lifted it up with force.

In order to make the performance more realistic, his movements were very cautious and slow. He would pause for a moment almost every few centimeters he lifted to see if anything strange would happen.

In order to make the performance more realistic, his movements were very cautious and slow. He would pause for a moment almost every few centimeters he lifted to see if anything strange would happen.

It was very calm under the stone slab. There were no strange sounds, no crossbows and javelins shooting out, and no monsters rushing out of the ground to attack Ye Tian, ​​who was trying to open the secret passage and seize the treasure.

It was very calm under the stone slab. There were no strange sounds, no crossbows and javelins shooting out, and no monsters rushing out of the ground to attack Ye Tian, ​​who was trying to open the secret passage and seize the treasure.

What was left was just a stream of slightly filthy air, which quickly escaped along the cracks in the stone slabs and quickly spread throughout the church.

What was left was just a stream of slightly filthy air, which quickly escaped along the cracks in the stone slabs and quickly spread throughout the church.

"Bang——!"

"Bang——!"

Finally, the unusually heavy granite slab at the bottom of the pit was lifted open again after more than 800 years.

Finally, the unusually heavy granite slab at the bottom of the pit was lifted open again after more than 800 years.

Under the stone slab is a dark hole and a spiral staircase, which is obviously a secret passage.

Under the stone slab is a dark hole and a spiral staircase, which is obviously a secret passage.

Even though he had already seen this scene through perspective, Ye Tian still cheered when the entrance to the secret passage actually appeared in front of him.

Even though he had seen this scene through perspective, Ye Tian still cheered when the entrance to the secret passage actually appeared in front of him.

"Sure enough, there really is a secret passage leading deep underground. It's really great!"

"Sure enough, there really is a secret passage leading deep underground. It's really great!"

As he cheered, Jason and the others who were standing at the edge of the pit all poked their heads out to look at the bottom of the pit. Everyone's eyes were shining with anticipation.

As he cheered, Jason and the others who were standing at the edge of the pit all poked their heads out to look at the bottom of the pit. Everyone's eyes were shining with anticipation.

When they saw the entrance to the secret passage at the bottom of the pit, they immediately cheered with excitement.

When they saw the entrance to the secret passage at the bottom of the pit, they immediately cheered with excitement.

Those people who were outside the prayer house scratched their hearts and stretched their necks to look inside the prayer house, wishing they could rush in immediately and see what was going on.

Those people who were outside the prayer house scratched their hearts and stretched their necks to look inside the prayer house, wishing they could rush in immediately and see what was going on.

However, before Ye Tian gave any instructions, they could only stay outside the prayer room and continue to be tortured by curiosity.

However, before Ye Tian gave any instructions, they could only stay outside the prayer room and continue to be tortured by curiosity.

"Steven, what's going on at the bottom of the pit? Can you tell us about it?"

"Steven, what's going on at the bottom of the pit? Can you tell us about it?"

Father Ramirez shouted, obviously impatient.

Father Ramirez shouted, obviously impatient.

The rest of the people outside the prayer house are not the same. They are all the same.

The rest of the people outside the prayer house are not the same. They are all the same.

"Under the heavy granite slab at the bottom of the pit, there is indeed a hidden entrance to a secret passage, as well as a spiral staircase. They are all made of granite, very strong, and very neatly built.

"Under the heavy granite slab at the bottom of the pit, there is indeed a hidden entrance to a secret passage, as well as a spiral staircase. They are all made of granite, very strong, and very neatly built.

On the wall at the entrance to the secret passage are engraved the emblem of the Knights Templar, the Malta cross, and some mysterious symbols, as well as some rusty bronze candlesticks, like the ones at the top of the prayer house.

On the wall at the entrance to the secret passage are engraved the emblem of the Knights Templar, the Malta cross, and some mysterious symbols, as well as some rusty bronze candlesticks, like the ones at the top of the prayer house.

There are no traps here, but the secret passage is dark. I don’t know if it is safe. The air quality is also unknown. Further detection is needed. For safety reasons, it is best for everyone to stay outside the prayer house."

There are no traps here, but the secret passage is dark. I don’t know if it is safe. The air quality is also unknown. Further detection is needed. For safety reasons, it is best for everyone to stay outside the prayer house."

Ye Tian's voice came from the prayer room, briefly introducing the situation.

Ye Tian's voice came from the prayer room, briefly introducing the situation.

After hearing the announcement, the people outside the prayer house became even more excited, but they could only stay outside and wait for the results of further exploration.

At the bottom of the big pit in the center of the prayer house, Ye Tian carefully observed the entrance to the secret passage, then raised his head and said to the men at the edge of the pit:

After hearing the announcement, the people outside the prayer house became even more excited, but they could only stay outside and wait for the results of further exploration.

"Guys, put down the air monitor. Let's test the air in the secret tunnel first to see if it is poisonous, and then take the next step"

At the bottom of the big pit in the center of the prayer house, Ye Tian carefully observed the entrance to the secret passage, then raised his head and said to his men at the edge of the pit:

"Okay, Steven"

"Guys, put down the air monitor. Let's test the air in the secret tunnel first to see if it is poisonous, and then take the next step"

Jason, who was staying at the edge of the pit, nodded in response and immediately took action.

"Okay, Steven"

Soon, the air detector was put down, along with Mark and another company employee.

Jason, who was staying at the edge of the pit, nodded in response and immediately took action.

After standing at the bottom of the pit, Mark and the others immediately started working, turned on the air detector, and then used a safety rope to hang the air detector into the secret tunnel.

Soon, the air detector was put down, along with Mark and another company employee.

The test results came out soon, and Mark reported them.

After standing at the bottom of the pit, Mark and the others immediately started working, turned on the air detector, and then used a safety rope to hang the air detector into the secret tunnel.

"Steven, we did not detect deadly toxic gases in this secret passage. The air is slightly polluted, but it does not affect health. After all, this is a relatively closed underground place.

The test results came out soon, and Mark reported them.

The air in the secret passage is relatively humid, as evidenced by the moss on the steps and walls. From this point of view, there should be other vents in this secret passage and the underground palace below."

"Steven, we did not detect deadly toxic gases in this secret passage. The air is slightly polluted, but it does not affect health. After all, this is a relatively closed underground place.

Hearing the announcement, Ye Tian pondered for a moment, and then said excitedly:

The air in the secret passage is relatively humid, as evidenced by the moss on the steps and walls. From this point of view, there should be other vents in this secret passage and the underground palace below."

"Great, the air in the secret tunnel is safe and non-toxic. For us, this is obviously good news. It can reduce a lot of troubles and greatly improve the efficiency of exploration operations.

After hearing the announcement, Ye Tian pondered for a moment, and then said excitedly:

However, for safety reasons, everyone still wears protective equipment. After we enter the palace deep underground and it is truly safe, everyone will take off the protective clothing.

"Great, the air in the secret tunnel is safe and non-toxic. For us, this is obviously good news. It can reduce a lot of troubles and greatly improve the efficiency of exploration operations.

Take back the air detector, put the ventilation equipment into this secret passage, and completely replace the dirty air deep in the secret passage, just in case, and prepare for follow-up actions.

However, for safety reasons, everyone still wears protective equipment. After we enter the palace deep underground and it is truly safe, everyone will take off the protective clothing.

Next, it’s time to send the drone down to explore the path to see what is hidden at the end of this secret passage. Is it the Knights Templar treasure we are looking for, or something else?"

Take back the air detector, put the ventilation equipment into this secret passage, and completely replace the dirty air deep in the secret passage, just in case, and prepare for follow-up actions.

"Okay, Steven, leave these things to us"

Next, it’s time to send the drone down to explore the path to see what is hidden at the end of this secret passage. Is it the Knights Templar treasure we are looking for, or something else?"

Mark nodded in response and immediately took action.

"Okay, Steven, leave these things to us"

Ye Tianze left the bottom of the pit, walked out of the prayer room, and met David and the others.

Mark nodded in response and immediately took action.

At the same time, Jason and the others hoisted two powerful fans to the bottom of the pit and began to replace the air in the secret tunnel.

Ye Tianze left the bottom of the pit, walked out of the prayer room, and met David and the others.

After Ye Tian left the prayer room, he was immediately surrounded by the guys outside, asking about the situation of the secret passage at the bottom of the pit.

At the same time, Jason and the others hoisted two powerful fans to the bottom of the pit and began to replace the air in the secret tunnel.

Ye Tian did not hide anything and truthfully introduced the situation of the secret passage, including the air quality that had just been tested.

After Ye Tian left the prayer room, he was immediately surrounded by the guys outside, asking about the situation of the secret passage at the bottom of the pit.

When he heard that there was another vent in this secret passage and the underground palace, Father Ramirez immediately asked in surprise:

Ye Tian did not hide anything and truthfully introduced the situation of the secret passage, including the air quality that had just been tested.

"Steven, where could this vent be located? Why has no one found it in the past seven or eight hundred years?"

When he heard that there was another vent in this secret passage and the underground palace, Father Ramirez immediately asked in surprise:

Ye Tian gently shook his head and said with a smile:

"Steven, where could this vent be located? Why has no one found it in the past seven or eight hundred years?"

“I don’t know where this vent is. It may be in an inconspicuous corner inside Tomar Castle, or it may be in the valleys with ravines outside the castle.

Ye Tian gently shook his head and said with a smile:

This possibility cannot be ruled out. The palace located deep underground may be built on an underground cave. The vents are connected to some caves, which may also be the exit.

“I don’t know where this vent is. It may be in an inconspicuous corner inside Tomar Castle, or it may be in the valleys with ravines outside the castle.

There is no need to worry, Father Ramirez, since we have discovered this secret passage, the underground palace at the end of the secret passage, and even the vents, I believe they will be revealed soon."

This possibility cannot be ruled out. The palace located deep underground may be built on an underground cave. The vents are connected to some caves, which may also be the exit.

Ten minutes passed while I was talking.

There is no need to worry, Father Ramirez, since we have discovered this secret passage, the underground palace at the end of the secret passage, and even the vents, I believe they will be revealed soon."

Under the action of two powerful fans, the air in the secret passage was completely changed, and the air suddenly became much fresher, no longer much different from the outside world.

Ten minutes passed while I was talking.

Mark and the others who were working at the bottom of the pit immediately turned off the fan, then put a drone with a high-definition camera and strong searchlight into the secret passage, and flew along the spiral stairs to the depths of the secret passage. at.

Under the action of two powerful fans, the air in the secret passage was completely changed, and the air suddenly became much fresher, no longer much different from the outside world.

Mark and the others who were working at the bottom of the pit immediately turned off the fan, then put a drone with a high-definition camera and strong searchlight into the secret passage, and flew along the spiral stairs to the depths of the secret passage. at.

www.lnmao.org, the fastest update to the latest chapters of treasure hunting around the world!

www.lnmao.org, the fastest update to the latest chapters of treasure hunting around the world!

The granite bars at the bottom of the pit were lifted up, exposing a granite slab below.

The granite bars at the bottom of the pit were lifted up, exposing a granite slab below.

In the center of this square and unusually thick stone slab is carved a Martian cross and several mysterious symbols unique to the Knights Templar, which are very eye-catching.

In the center of this square and unusually thick stone slab is carved a Martian cross and several mysterious symbols unique to the Knights Templar, which are very eye-catching.

After the last granite stone was lifted out of the pit and moved outside the prayer house, Ye Tian, ​​who had already tied the safety rope, descended to the bottom of the pit again.

After the last granite stone was lifted out of the pit and moved outside the prayer house, Ye Tian, ​​who had already tied the safety rope, descended to the bottom of the pit again.

He pretended to carefully observe the granite slab at the bottom of the pit and the situation around the slab, then raised his head and said with a smile:

He pretended to carefully observe the granite slab at the bottom of the pit and the situation around the slab, then raised his head and said with a smile:

"Obviously, there is a secret passage under this stone slab, leading deep underground. This place has been closed for a long time. I don't know if there are any traps. For safety reasons, it is best for everyone to exit the prayer house"

"Obviously, there is a secret passage under this stone slab, leading deep underground. This place has been closed for a long time. I don't know if there are any traps. For safety reasons, it is best for everyone to exit the prayer house"

Hearing this, the guys standing on the edge of the pit all nodded and had no different opinions.

Hearing this, the guys standing on the edge of the pit all nodded and had no different opinions.

Afterwards, they exited the prayer room, leaving only Jason and the others to cooperate with Ye Tian.

Afterwards, they exited the prayer room, leaving only Jason and the others to cooperate with Ye Tian.

Next, Ye Tian squatted down, held one side of the granite slab at the bottom of the pit with both hands, and lifted it up with force.

Next, Ye Tian squatted down, held one side of the granite slab at the bottom of the pit with both hands, and lifted it up with force.

In order to make the performance more realistic, his movements were very cautious and slow. He would pause for a moment almost every few centimeters he lifted to see if anything strange would happen.

In order to make the performance more realistic, his movements were very cautious and slow. He would pause for a moment almost every few centimeters he lifted to see if anything strange would happen.

It was very calm under the stone slab. There were no strange sounds, no crossbows and javelins shooting out, and no monsters rushing out of the ground to attack Ye Tian, ​​who was trying to open the secret passage and seize the treasure.

It was very calm under the stone slab. There were no strange sounds, no crossbows and javelins shooting out, and no monsters rushing out of the ground to attack Ye Tian, ​​who was trying to open the secret passage and seize the treasure.

What was left was just a stream of slightly filthy air, which quickly escaped along the cracks in the stone slabs and quickly spread throughout the church.

What was left was just a stream of slightly filthy air, which quickly escaped along the cracks in the stone slabs and quickly spread throughout the church.

"Bang——!"

"Bang——!"

Finally, the unusually heavy granite slab at the bottom of the pit was lifted open again after more than 800 years.

Finally, the unusually heavy granite slab at the bottom of the pit was lifted open again after more than 800 years.

Under the stone slab is a dark hole and a spiral staircase, which is obviously a secret passage.

Under the stone slab is a dark hole and a spiral staircase, which is obviously a secret passage.

Even though he had already seen this scene through perspective, Ye Tian still cheered when the entrance to the secret passage actually appeared in front of him.

Even though he had seen this scene through perspective, Ye Tian still cheered when the entrance to the secret passage actually appeared in front of him.

"Sure enough, there really is a secret passage leading deep underground. It's really great!"

"Sure enough, there really is a secret passage leading deep underground. It's really great!"

As he cheered, Jason and the others who were standing at the edge of the pit all poked their heads out to look at the bottom of the pit. Everyone's eyes were shining with anticipation.

As he cheered, Jason and the others who were standing at the edge of the pit all poked their heads out to look at the bottom of the pit. Everyone's eyes were shining with anticipation.

When they saw the entrance to the secret passage at the bottom of the pit, they immediately cheered with excitement.

When they saw the entrance to the secret passage at the bottom of the pit, they immediately cheered with excitement.

Those people who were outside the prayer house scratched their hearts and stretched their necks to look inside the prayer house, wishing they could rush in immediately and see what was going on.

Those people who were outside the prayer house scratched their hearts and stretched their necks to look inside the prayer house, wishing they could rush in immediately and see what was going on.

However, before Ye Tian gave any instructions, they could only stay outside the prayer room and continue to be tortured by curiosity.

However, before Ye Tian gave any instructions, they could only stay outside the prayer room and continue to be tortured by curiosity.

"Steven, what's going on at the bottom of the pit? Can you tell us about it?"

"Steven, what's going on at the bottom of the pit? Can you tell us about it?"

Father Ramirez shouted, obviously impatient.

Father Ramirez shouted, obviously impatient.

The rest of the people outside the prayer house are not the same. They are all the same.

The rest of the people outside the prayer house are not the same. They are all the same.

"Under the heavy granite slab at the bottom of the pit, there is indeed a hidden entrance to a secret passage, as well as a spiral staircase. They are all made of granite, very strong, and very neatly built.

"Under the heavy granite slab at the bottom of the pit, there is indeed a hidden entrance to a secret passage, as well as a spiral staircase. They are all made of granite, very strong, and very neatly built.

On the wall at the entrance to the secret passage are engraved the emblem of the Knights Templar, the Malta cross, and some mysterious symbols, as well as some rusty bronze candlesticks, like the ones at the top of the prayer house.

On the wall at the entrance to the secret passage are engraved the emblem of the Knights Templar, the Malta cross, and some mysterious symbols, as well as some rusty bronze candlesticks, like the ones at the top of the prayer house.

There are no traps here, but the secret passage is dark. I don’t know if it is safe. The air quality is also unknown. Further detection is needed. For safety reasons, it is best for everyone to stay outside the prayer house."

There are no traps here, but the secret passage is dark. I don’t know if it is safe. The air quality is also unknown. Further detection is needed. For safety reasons, it is best for everyone to stay outside the prayer house."

Ye Tian's voice came from the prayer room, briefly introducing the situation.

Ye Tian's voice came from the prayer room, briefly introducing the situation.

After hearing the announcement, the people outside the prayer house became even more excited, but they could only stay outside and wait for the results of further exploration.

At the bottom of the big pit in the center of the prayer house, Ye Tian carefully observed the entrance to the secret passage, then raised his head and said to the men at the edge of the pit:

After hearing the announcement, the people outside the prayer house became even more excited, but they could only stay outside and wait for the results of further exploration.

"Guys, put down the air monitor. Let's test the air in the secret tunnel first to see if it is poisonous, and then take the next step"

At the bottom of the big pit in the center of the prayer house, Ye Tian carefully observed the entrance to the secret passage, then raised his head and said to his men at the edge of the pit:

"Okay, Steven"

"Guys, put down the air monitor. Let's test the air in the secret tunnel first to see if it is poisonous, and then take the next step"

Jason, who was staying at the edge of the pit, nodded in response and immediately took action.

"Okay, Steven"

Soon, the air detector was put down, along with Mark and another company employee.

Jason, who was staying at the edge of the pit, nodded in response and immediately took action.

After standing at the bottom of the pit, Mark and the others immediately started working, turned on the air detector, and then used a safety rope to hang the air detector into the secret tunnel.

Soon, the air detector was put down, along with Mark and another company employee.

The test results came out soon, and Mark reported them.

After standing at the bottom of the pit, Mark and the others immediately started working, turned on the air detector, and then used a safety rope to hang the air detector into the secret tunnel.

"Steven, we did not detect deadly toxic gases in this secret passage. The air is slightly polluted, but it does not affect health. After all, this is a relatively closed underground place.

The test results came out soon, and Mark reported them.

The air in the secret passage is relatively humid, as evidenced by the moss on the steps and walls. From this point of view, there should be other vents in this secret passage and the underground palace below."

"Steven, we did not detect deadly toxic gases in this secret passage. The air is slightly polluted, but it does not affect health. After all, this is a relatively closed underground place.

Hearing the announcement, Ye Tian pondered for a moment, and then said excitedly:

The air in the secret passage is relatively humid, as evidenced by the moss on the steps and walls. From this point of view, there should be other vents in this secret passage and the underground palace below."

"Great, the air in the secret tunnel is safe and non-toxic. For us, this is obviously good news. It can reduce a lot of troubles and greatly improve the efficiency of exploration operations.

After hearing the announcement, Ye Tian pondered for a moment, and then said excitedly:

However, for safety reasons, everyone still wears protective equipment. After we enter the palace deep underground and it is truly safe, everyone will take off the protective clothing.

"Great, the air in the secret tunnel is safe and non-toxic. For us, this is obviously good news. It can reduce a lot of troubles and greatly improve the efficiency of exploration operations.

Take back the air detector, put the ventilation equipment into this secret passage, and completely replace the dirty air deep in the secret passage, just in case, and prepare for follow-up actions.

However, for safety reasons, everyone still wears protective equipment. After we enter the palace deep underground and it is truly safe, everyone will take off the protective clothing.

Next, it’s time to send the drone down to explore the path to see what is hidden at the end of this secret passage. Is it the Knights Templar treasure we are looking for, or something else?"

Take back the air detector, put the ventilation equipment into this secret passage, and completely replace the dirty air deep in the secret passage, just in case, and prepare for follow-up actions.

"Okay, Steven, leave these things to us"

Next, it’s time to send the drone down to explore the path to see what is hidden at the end of this secret passage. Is it the Knights Templar treasure we are looking for, or something else?"

Mark nodded in response and immediately took action.

"Okay, Steven, leave these things to us"

Ye Tianze left the bottom of the pit, walked out of the prayer room, and met David and the others.

Mark nodded in response and immediately took action.

At the same time, Jason and the others hoisted two powerful fans to the bottom of the pit and began to replace the air in the secret tunnel.

Ye Tianze left the bottom of the pit, walked out of the prayer room, and met David and the others.

After Ye Tian left the prayer room, he was immediately surrounded by the guys outside, asking about the situation of the secret passage at the bottom of the pit.

At the same time, Jason and the others hoisted two powerful fans to the bottom of the pit and began to replace the air in the secret tunnel.

Ye Tian did not hide anything and truthfully introduced the situation of the secret passage, including the air quality that had just been tested.

After Ye Tian left the prayer room, he was immediately surrounded by the guys outside, asking about the situation of the secret passage at the bottom of the pit.

When he heard that there was another vent in this secret passage and the underground palace, Father Ramirez immediately asked in surprise:

Ye Tian did not hide anything and truthfully introduced the situation of the secret passage, including the air quality that had just been tested.

"Steven, where could this vent be located? Why has no one found it in the past seven or eight hundred years?"

When he heard that there was another vent in this secret passage and the underground palace, Father Ramirez immediately asked in surprise:

Ye Tian gently shook his head and said with a smile:

"Steven, where could this vent be located? Why has no one found it in the past seven or eight hundred years?"

“I don’t know where this vent is. It may be in an inconspicuous corner inside Tomar Castle, or it may be in the valleys with ravines outside the castle.

Ye Tian gently shook his head and said with a smile:

This possibility cannot be ruled out. The palace located deep underground may be built on an underground cave. The vents are connected to some caves, which may also be the exit.

“I don’t know where this vent is. It may be in an inconspicuous corner inside Tomar Castle, or it may be in the valleys with ravines outside the castle.

There is no need to worry, Father Ramirez, since we have discovered this secret passage, the underground palace at the end of the secret passage, and even the vents, I believe they will be revealed soon."

This possibility cannot be ruled out. The palace located deep underground may be built on an underground cave. The vents are connected to some caves, which may also be the exit.

Ten minutes passed while I was talking.

There is no need to worry, Father Ramirez, since we have discovered this secret passage, the underground palace at the end of the secret passage, and even the vents, I believe they will be revealed soon."

Under the action of two powerful fans, the air in the secret passage was completely changed, and the air suddenly became much fresher, no longer much different from the outside world.

Ten minutes passed while I was talking.

Mark and the others who were working at the bottom of the pit immediately turned off the fan, then put a drone with a high-definition camera and strong searchlight into the secret passage, and flew along the spiral stairs to the depths of the secret passage. at.

Under the action of two powerful fans, the air in the secret passage was completely changed, and the air suddenly became much fresher, no longer much different from the outside world.

Mark and the others who were working at the bottom of the pit immediately turned off the fan, then put a drone with a high-definition camera and strong searchlight into the secret passage, and flew along the spiral stairs to the depths of the secret passage. at.