"Buzz -"

The strange and strange low sound sounded faintly from the bottom of the sea, so low that people could hardly breathe. But if you don't listen and look carefully, as long as you are a little distracted, it immediately disappears in the blink of an eye, which makes you wonder if you have auditory hallucinations.

"Seems... A little less like a bubble?"

Professor McGonagall said this and subconsciously looked up in the direction of the other two people around him. But in such a moment, she was suddenly stunned - because the voice suddenly disappeared again?

After a slight pause, she quickly closed her eyes again and again, listened carefully and distinguished for a moment, and caught the seemingly extremely subtle sound again after a few minutes... But after hearing it, she could immediately feel its sense of existence and its inexplicable and powerful strange buzzing sound.

This strange and contradictory extreme contrast immediately made MEG even more uneasy.

In fact, Snape, who is better at this, obviously feels more than her. He naturally heard the voice. Not only that, he gradually heard something different from it.

"Professor McGonagall, just leave it to me and Professor sprott. Go... Use emergency means to contact McLean!"

The original study tour plan was put forward by Maka, and he also led many matters in the whole process of organization and preparation. Therefore, it has become a matter of course that he will leave one or two emergency contact means here.

"Marca... Well, OK."

MEG hesitated a little, then nodded, and then went back to the cabin like flavy just now. After closing the door, she had not forgotten to mend Snape's protective spell to block the fog.

But ask her why she "hesitated" so suddenly at the beginning... In fact, in addition to maintaining contact with France, that is, the rear of the current combat front, Maka's direct contact with the change has been completely interrupted for many days. Now she is asked to try to contact Maka again. To tell the truth, even if it is a backup emergency means, she is not sure whether she can succeed.

Needless to say, it is not just the people on the side of the Rebel Alliance who are confused and worried about Maka's problem!

Soon MEG went straight through the middle aisle and rushed into the room at the end. Then he closed the door with a bang with his 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 spraot on the deck.

"Strange?"

Suddenly, spruot, who was watching the sea with Snape, became more and more confused, and heard her suddenly say to herself:

"There was a constant noise below, but there was no movement in my hurricane... Severus, you just said you saw a huge creature. Is it true?"

"I'm not sure it's a 'creature'!" snape shook his head and listened attentively to the sound. "However, the sound should be deep under the sea... How many algae have you bred? Where have you been?"

"I can't give you the specific figures," sprott said, "but I used a powerful accelerator for them at the beginning. You should know the effect it can achieve better than me - the main material of the accelerator is diluted 100 times dragon blood!"

"Dragon blood? If so -"

Snape listened to her and unconsciously began to calculate the effect of medicine and the dilution and decline effect of sea water. However, the consequence of such distraction is that it is easy to "lose" the buzzing.

A little stunned, he quickly put aside the unnecessary calculation in his mind and looked for the underwater sound again.

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

"Wait!" snape whispered hastily after a brief meal. "Sprot, don't listen! That voice... Um..."

……

The voice suddenly rose!

Obviously, there are not few people on the change who are aware of the buzz and naturally listen to it - including a group of small wizards studying in the teaching cabin.

Alexander, who had fallen after a previous accidental tilt of the ship, has now returned to his seat. At the same time, many students who were not at ease before also quieted down.

Yes, the forward tilt of the change is undoubtedly extremely rare. This is the first time that such a large tilt has occurred since everyone got on board - you know, even when it sailed through the Antarctic circulation before, the change only shook slightly for a while.

Because of this, when the abnormal change happened just now, the little wizards couldn't help saying something bad in their hearts. Then, in addition to the situation that Professor McGonagall was called out by Snape, everyone could not help but shut their mouths and felt uneasy.

In such a situation where they don't know anything, they should sit in place and wait. This is what these students should do - their students have experienced several major disasters and minor difficulties in recent years, and they know what to do in case of accidents.

Not to mention, professors often apply for five orders three times after class. It's hard to listen.

Although... Children! There are always a few little guys who still can't stand it... For example, the little lions who slipped out early just now.

"Huh?"

In about half an hour from beginning to end, Ernst, who sat in the back row, although he didn't seem to care much about it on the surface, he also paid silent attention in his heart. Especially the strange sound, he also heard it, and was still watching it all the time.

As for the magic book on the desk... In fact, he hasn't been reading it for a long time.

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

But at this time, everyone was stunned to find that covering their ears didn't work at all!