Harry Potter’s Book of Sin Chapter 2021: Deep and high-pitched

"Om——"

The peculiar and weird low hum sounded faintly from the bottom of the sea, so low that it almost made people breathless. But if you don't listen and search carefully and attentively, as long as you lose your mind, it disappears in the blink of an eye, and you can't help but start to wonder if you have auditory hallucinations.

"It seems...a bit less like bubbles?"

Professor McGonagall said this, then subconsciously raised his head and glanced in the direction of the other two people beside him. But with such a moment of effort, she was taken aback suddenly-because that voice suddenly disappeared?

After a short pause, I saw her hurriedly closed her eyes again, listened carefully and distinguished for a moment, only a few minutes later, she recaptured what seemed to be extremely subtle...but after hearing it, immediately I can feel its inexplicably powerful and weird buzzing sound.

This strange and contradictory extreme contrast made McGonagall feel even more uneasy.

In fact, Snape, who was better at this aspect, obviously felt more inside than her. He naturally heard this voice, not only that, but he also gradually heard something different from it.

"Professor McGonagall, leave it to me and Professor Sprout here, go... use emergency means to contact McLean!"

The original plan for studying abroad was originally proposed by Maca, and during the entire organization and preparation process, he also led many things. Therefore, he will leave one or two emergency contact methods here, and it has become a matter of course.

"Maca... well, good."

Mag hesitated for a while, then nodded, and then went back to the cabin just like Flitwick. And after closing the door, she hadn't forgotten to reapply Snape's protective spell to block the fog.

May I ask her why she "hesitated" so suddenly in the first place... In fact, apart from the French side, which is the rear front of the current battle, the direct contact between Maca and the Transformation is actually It has been completely interrupted for many days. Now she is going to try to re-establish contact with Maca. To be honest, even if it is to activate backup emergency means, she is not sure whether it will succeed.

Needless to say, it is not just the people on the side of the rebel alliance who are currently confused and worried about the problem of Maca!

Not long after, McGonagall walked straight through the middle aisle, rushed into the room at the end, and then shut the door with a "bang" backhand.

So, nearly ten minutes later, there was still no movement at the door of McGonagall's room, but there seemed to be a new situation on Snape and Sprout on the deck.

"Strange?"

Suddenly, Sprout, who was watching the situation in the sea with Snape, became more and more suspicious, and she suddenly said to herself:

"Clearly noises are coming from below, but my hurricane algae hasn't moved at all... Severus, you just said you saw a huge creature, is it true?"

"I'm not sure that it is a'creature'!" Snape immediately shook his head when he heard the words, and casually said while listening to the sound intently, "However, the sound should be on the bottom of the sea. The deep place...how much did your seaweed multiply? Where did it go?"

"I can't give the exact numbers," Sprout said, "but I gave them a powerful accelerant, potions, and you should know better than me what it can achieve. Effect-the main material of the stimulant is dragon blood diluted a hundred times!"

"Dragon Blood? If you say so—"

When Snape heard her say this, he couldn't help but subconsciously start the mental arithmetic power and the diminishing effect of sea water. However, as a consequence of such distractions, it is natural to "lost" the buzzing sound easily.

For a moment, he quickly put aside the unnecessary calculations in his mind and searched for the sound that originated from underwater.

After a few minutes of listening, he caught the once lost sound again. But this time, when he heard the sound again, he immediately frowned.

"Wait!" After a short pause, Snape hurriedly said in a low voice, "Sprout, stop listening! That voice...well..."

……

The voice suddenly rose!

Obviously, people who perceive this buzzing sound and listen naturally are not few on the Change—including a group of little wizards who are studying in the classroom for self-study.

After an accidental tilt of the previous ship, Alexander, who had fallen over, has now returned to his seat. At the same time, many of the classmates who were not in peace before were mostly quiet.

Yes, the forward tilt of the Transformation is undoubtedly extremely rare. This is the first time that such a large tilt has occurred since everyone’s boarding until today-you know, even if it traveled through the Antarctic circulation before While sailing, the Transformation only swayed for a while.

Because of this, when the abnormal change just happened, the little wizards couldn't help but secretly said that it was not good. Then, coupled with the previous situation that Professor McGonagall was called out by Snape, everyone couldn't help but shut their mouths one after another, and their hearts became nervous.

In such a situation where nothing is clear, sitting here and waiting honestly is what their students should do—their classes of students have experienced several years one after another in recent years. After a major disaster, and an accident, I knew how to do it.

Not to mention ~IndoMTL.com~Professors often apply for five orders after class. It's hard to think about it or not.

Although... the kid! There are always a few little guys who still can't settle down... For example, the little lions that slipped out earlier.

"Huh?"

For about half an hour from start to finish, although Ensi sitting in the back row didn't seem to care much about this matter on the surface, he was paying attention to it silently in his heart. Especially the strange sound, he also heard it, and was still paying attention to it all the time.

As for the magic book on the desk...Actually, he hadn't read it a long time ago.

It was also at this moment, when the mysterious and inexplicable sound suddenly rose, the tone changed from low to high, and finally turned directly into a disturbing buzzing sound, he and the others The listener only felt a "buzz" in his head, which made him frown, and subconsciously raised his hands to cover his ears.

But at this moment everyone was stunned to realize that covering their ears or something didn't work at all!

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