Sharing secrets is the most direct way to get closer to each other, after listening to Professor Bryan tell his secrets, after calming down, Harry was obviously a little embarrassed, he hesitated to look at Hermione, and Hermione, who got his eyes to ask, was obviously a little hesitant.

"What, do you have something to share with me?"

Amosta got up and went to the fireplace, picked up the hot kettle from the shelf and poured himself a cup of tea, and by the time he got back to his seat, Hermione and Harry had clearly come to some kind of agreement.

"Professor Blaine, do you think it's a good talent to hear voices that others can't hear?"

Looking at Harry who was hesitant, Amosta knew that his behavior of building a good relationship with them, intentionally or unintentionally, was finally about to pay off, and he hid his expression in the clouds, and replied very gently,

"It depends, Potter, and a simple sentence won't make me make an accurate judgment."

The suffocating silence descended suddenly, Hermione shutting down, and Harry, with a worried expression.

Professor Bryan is a professor he likes very much, but the other party did not enter Hogwarts for the purpose of teaching, it is Professor Bryan's job to investigate the incident in the secret room, and if he can, Harry hopes to be able to help the other party, of course, provided that he does not involve himself or Dobby and Hagrid.

The best-case scenario is for Professor Blaine to find the chamber or the monster in it, and then the whole thing ends there, and no one will be held accountable.

"--This is the case,"

Harry spoke cautiously, and he thought about his words, trying to convince Professor Bryan that he knew only a little bit.

"The first time I entered your office, you asked me why we were on the third floor on Halloween night last year, after Nick's Death Party..., actually, because I heard a strange voice, which was first seen in Professor Lockhart's office."

For the next ten minutes, Harry explained the cause and effect of the strange voice, and Amosta, who had heard all this, leaned back in his chair with a blank face, and fell into a long deep thought.

"What do you think that sound is coming from?"

"Are you sure you're the only one who hears it, Mr. Potter?"

Amosta did not rush to express his opinion, but reconfirmed.

"That's true, Professor Brian--"

Hermione nodded cautiously, "Harry and I were with Ron, but neither Ron nor I noticed anything wrong with Harry. ”

Amosta nodded clearly, he carefully recalled the journey from the basement to the third floor, and said in a very slow tone under the eager gaze of the two little wizards,

"If I'm not mistaken, it should be a snake that made that sound--"

"A snake!"

Harry screamed, and Hermione looked like she had been struck by lightning, and Professor Brian's simple guess pierced the fog that had been hanging over her for so long.

"Yes, it must be, Harry!"

Hermione slammed herself up from her chair, her face crimson, her fingertips trembling from being so excited,

"Everything can be explained..., only you can hear the voice, of course, Harry, because you're a parseltongue, no one but you can figure out what a snake's hissing means!"

"But!"

Harry, who had followed Hermione's train of thought, retorted,

"There were only a bunch of ghosts in the basement and in the hallway except for the three of us, and if there was a snake, it wouldn't have been able to hide itself in the walls, would it, Hermione?"

"Not necessarily..."

Harry's words furrowed Hermione's brow, and she hesitated in reply,

"If the snake is small enough, maybe it can allow itself to swim through the cracks in the bricks..., or maybe it has a special ability to move freely through walls, after all, a normal snake doesn't have the ability to petrify anyone, Harry!"

Hermione's guess was a possibility, but it was only a possibility.

"As long as anything exists, no matter how careful you are, it will definitely leave a trace--"

Amosta smiled and stood up, finally having something to do, he seemed to be in a good mood, he waved his wand, cleaned up all the letters scattered on the table on the floor, and then looked at Harry and Hermione,

"Let's go to the scene again, maybe we can find some interesting clues!"

......

The night was dark, and on Sunday nights, there weren't many young wizards roaming the castle, and most of them were sitting in the common room to catch up on homework or play a game of wizard's chess, gobstone, or the like with their friends.

As they passed the second floor, they saw Filch yelling and threatening the two first-year wizards to wipe the muddy water off the floor or they would be tied up in chains and hung in the office.

"There's no need to be so the little wizard, Filch--"

Facing Filch, who was unconvinced but didn't dare to resist a professor's order, Amosta smiled gently,

"It won't be long before Professor Sprout's mandrake will ripen, and Lady Loris will soon be healthy—"

The three of them came to a hallway near the foyer that led to the basement, where there was no light in the dark, and the seams between the walls and the floor still had the liquid of a row of black candles that had been placed here during Nick's death party.

"I was standing right here--"

More than four months later, Harry still remembered what happened that night, and he quickly led Hermione and Professor Brian to the halfway point of the corridor, pointed to the wall, and said,

"That voice appeared in the wall, then went up the ceiling, and finally took us to the third floor!"

Amosta lit his wand, his gaze following Harry's guidance and drifting over the surface of the wall, before finally he nodded and said,

"Looks like we need to open this wall and take a look."

"Open the walls?!" Hermione smacked her tongue with a look of disbelief.

"Of course, Miss Granger, otherwise how would we find out how the snake was swimming inside the walls--"

Amosta said in a relaxed tone, and he raised his wand and casually swiped through the air, and with a few flashes of ghostly light, the hard wall was easily sliced through like tofu.

And when what is behind the wall is exposed to the air, all doubts are answered.

It's a tube!

Behind the rock walls, moldy pipes emit an unpleasant stench, and if you listen closely, you can hear the sound of running water.

"I always thought the wall was solid," a stunned Harry muttered quietly.

"Now the problem is clear!" Hermione's face turned a little pale, "I can't imagine what a thick snake can hide in such a big pipe!" ”

"There's still a lot of work to solve, Miss Granger..."

Amosta narrowed his eyes, he jumped up the broken wall, carefully examined the thick pipe, and for a while, he placed his wand in the palm of his hand,

"Show me the way!"