Inside The Black Mist Chapter 1769: Sister and brother reunion

Seeing that it was a history book, a male tutor smiled: "I don't know, when did you become interested in history?"

"Haven't you been researching the innovative technology of three-dimensional armament?"

Xiaojie pointed to the history book on the top and said: "Energy, in this world, there is energy that can replace the 'astral crystal'!"

"Extreme Spiritual Chaos Jue"

A mentor with a beautiful mustache laughed and said: "You look for alternative energy sources in history books?"

Xiaojie flipped open the book and said, "That's right, history has long pointed out to us the existence of new alternative energy sources."

"If we don't have these, then, what do we use before we don't have stellar crystals?"

The female mentor who wanted Xiaojie to leave before frowned and said, "That makes sense, so what did you find?"

Xiaojie raised his head: "Coal!"

He said loudly: "Before the appearance of the 'Astral Crystal', before the 'Era of Sublimation', the world encountered a terrible disaster that almost destroyed the entire world."

Mustache instructor smiled and said: "I know this."

"The 'black disaster'"

“Suddenly one day, a small town disappeared, and many people lost contact with their relatives in the town.”

"So someone went to the town."

"It didn't take long for the man to escape and come back, saying that everyone in the entire town disappeared, even the town itself."

"There is only a piece of dark land left in the whole town."

"No one believed what this person said at the time, but soon, similar disasters occurred in other towns and even cities."

A middle-aged mentor took the words and said: "The darkness spreads in the world. Wherever it passes, everything collapses. Whether it is human beings, animals or plants, they all disappear in this darkness."

Xiaojie nodded: "That's right, this is the 'Black Disaster'."

"However, this disaster suddenly stopped one day, and then after more than ten years, the first Clough door appeared."

"Since then, mankind has entered the 'age of sublimation'."

"However, before the end of the 'Black Disaster' and the start of the 'Era of Sublimation', people have found a solid fuel that can generate heat and provide energy."

"That is coal, it is a combustible organic rock, and it is a combustible mineral that was gradually formed by ancient plants buried in the ground through complex changes."

"Long before the 'age of sublimation', before the use of stellar crystals, coal existed and were effectively utilized."

"Now, shouldn't we repurpose this energy?"

Xiaojie said excitedly: "The disappearance of the Clough Gate heralds the arrival of a new era."

"Whoever can master a large amount of this mineral deposit and new energy in the early stage will be able to gain a firm foothold in the new era!"

Several mentors kept nodding.

The mustache said even more: "I will inform the city owner now. I remember that there is a natural coal mine near Qingtian Castle, but no one is mining it."

Other tutors also had their own jobs and left the classroom one after another.

The female tutor patted Xiaojie on the shoulder and said, "You did a good job."

"By the way, is there any news about your sister?"

Hearing these words, Xiaojie, who was originally excited, gradually became serious.

He shook his head, then said with a smile: "Although there is no news, I believe Brother Tianyang will protect my sister well."

The female instructor couldn't help sighing: "The savior who walked out of our fortress, I don't know how he is now."

Looking at Xiaojie again, the female tutor walked out of the classroom.

Xiaojie packed up his textbooks, and just as he walked out of the classroom, he heard someone calling his name.

Then, a burly figure squeezed into the young man's sight.

Looking at the other party's messy hair and smelling the faint smell of alcohol, Xiaojie couldn't help but said: "Captain Han Shu, are you drinking this early in the morning?"

As if he had just crawled out of bed, Han Shu grabbed Xiaojie's hand and left: "Quick, come back with me."

"Your sister is back!"

The book in Xiaojie's hand immediately fell to the ground.

Sitting in Han Shu's car, Xiaojie still couldn't believe it.

Since his sister Kaoru left Sky Castle, he has not seen his sister for several years.

The Kuroshio Current broke out, causing frequent disasters.

Although Xiaojie didn't say anything on the surface, he was actually very worried about his sister.

Now hear my sister back.

Of course he was happy, but he felt a little unreal.

Squeak——

The tires rub against the road violently, making a screeching sound.

Han Shu drove in a hurry, as if he was also in a hurry to meet someone.

Xiaojie guessed that he wanted to see his brother-in-law.

The door opens.

Xiaojie looked up, and it turned out that he had returned to the residence of his siblings.

They soon came to the door.

Xiaojie felt a little nervous.

He reached out to ring the doorbell, but drew it back.

"Click it." Han Shu encouraged.

Xiaojie pressed the doorbell vigorously.

Bell-bell-bell-

The bell was afraid of ringing, and the door opened soon. It was a strange little girl.

About ten years old, with big eyes, long eyelashes, very cute and cute.

The little girl looked dazed.

Then he whispered with an 'ah': "You must be brother Xiaojie, sister Xun's younger brother, right?"

Before Xiaojie had time to react, the little girl had already held his hand and pulled him into the living room: "Sister Xun, look, Brother Xiaojie is back."

The living room was surprisingly lively.

Lao Xu, Cang Du, and Ji Yu almost all came.

After my sister left, these people, like Captain Han Shu, took good care of him because of their brother-in-law Tianyang.

Especially Han Shu and Lao Xu, who came to see him almost every now and then, and they would be happy to help if there was any difficulty.

Now, they are all here.

Old Xu is holding a chubby baby, skillfully changing the diapers of Little Things, boasting that he changed his daughter's diapers before, making his daughter Mai next to him complain.

After Lao Xu changed his diapers, Mai Mai rushed to hold the baby. The little girl who pulled her in just now was very nervous. .

"Xiaojie."

A familiar voice sounds.

Xiaojie looked over.

I saw Kaoru in the crowd and saw my sister.

Basically, she has not changed, but her temperament has matured a lot, and her whole person exudes the brilliance of motherhood.

Xiaojie's body shook slightly, his eyes turned red a little, his lips trembled slightly, and finally he tried his best to control himself: "Sister, when did you come back?"

Xun walked over, hugged him tightly and said, "I just came back today."

"Are you okay?"

"Did you eat well?"

"Let's see, you have indeed grown taller. I almost don't recognize you."

Xiaojie laughed: "Of course, I'm growing fast."

He looked around: "By the way, where is Brother Tianyang?"

"Didn't he come back?"

After saying these words, Xiaojie keenly felt that the atmosphere in the room suddenly became a little dignified.