William had just walked into the lounge when he bumped into Penelope, who was walking out anxiously.

"Why did you come back so late? I'm almost going out to find you. The girl said to William with a complaining face.

"I went to the library to look up some materials, but I didn't expect it to be so late when I came back." William explained to the girl. "By the way, when did we have an extra pair of armor in the hallway in front of our break room?"

"You read that wrong, it's been years since there had been any armor at the door of the Ravenclaw break room.

Professor Flitwick thought the armor was too noisy and moved them away. ”

"That might really be my eyes, Penelope. Maybe it was some piece of armor that suddenly went off the clock. ”

William didn't think there was anything wrong with it, and even thought about it, after all, Hogwarts Castle even had a staircase to arrange a vacation for him! Another pair of armor that runs around late at night doesn't seem to be a no-no.

Then William and the girl talked about the ever-changing staircase in the castle, and the two of them walked to the lounge laughing.

"Actually, William, when you get acquainted with the movement of these stairs, everything becomes simpler.

There is a small library in the Ravenclaw common room, although the collection is not as rich as the Hogwarts library, but it contains many notes left by Ravenclaw ancestors, some of which describe the movement of the stairs, you can look for them.

This is also part of the Ravenclaw legacy, where we record what we have learned and share it with others, and we gain new knowledge from other people's notes. ”

"Thank you very much, Senpai Penelope."

The Ravenclaw lounge is quiet at night. Even at this time, there were still quite a few senior wizards in the lounge.

They are either quietly thinking about life by the fire, or sitting on the sofa chairs in the lounge quietly reading books, immersed in their own world.

In this environment, William and the girl's voices were very soft, which made the two of them get closer to each other, and it seemed a little ambiguous.

As William looked at the bookshelf next to the Ravenclaw statue, he didn't notice that the girl's face was slightly reddened.

It didn't take long for William to find a notebook detailing the transformation of the Hogwarts staircase, and William even found that the notebook contained several shortcuts.

There is a shortcut that leads directly from the library on the fifth floor to the second floor, and the entrance to this short road is covered by tapestries.

And there is a staircase in the middle that you need to jump over, otherwise your foot will step into the trap.

It's amazing! William looked at the notes in his hand as if he had been saved, "Which Ravenclaw senior found out this, Merlin is on top, this is really helpful to me!" William asked Penelope.

"Actually, there are shortcuts to these patterns that weren't discovered by the Ravenclaws, who discovered them, you may know, the Weasley brothers of Gryffindor." Penelope said to William with a smile.

"Then why?"

"Because it's an exchange of knowledge, William.

The Weasley brothers accidentally got an alchemy artifact, but they didn't have the ability to figure out what it did.

So, they approached Ravenclaw and wanted to unravel the secret of the item through us.

In exchange, they left behind the shortcuts, secret passages, and the transformation of those stairs that they had found over the years. The girl explained to William.

"Then who is so good at deciphering that alchemical artifact?" William asked curiously.

"Far away, close at hand, William."

"Is it Penelope? Senior sister is so powerful? William looked at the girl in front of him in surprise, he didn't expect that she was also such a clever wizard.

"Actually, there were a lot of coincidences when I cracked it, and at that time I happened to have some research on the parts of ancient magic texts about names." The girl said modestly,

"I can't tell you what that item does because of the Secrecy Charm, but I'm sure the Weasley brothers know the most about Hogwarts by now, besides the Headmaster

I don't even think Filch knows any more about Hogwarts' secret passages than the Weasley brothers, which is why Filch can't catch them. ”

Argus. Filch is the janitor of Hogwarts, and is vicious-looking, hot-tempered, and loves nothing more than to go against his students.

This made him deeply disgusted by the students of Hogwarts House, and his dislike for Filch was probably the only thing the four houses had in common.

Filch had a cat, whom he called Lady Loris, and like Filch, he spent his days wandering the corridors of the castle.

As soon as it notices that a student has made the slightest mess, it will immediately run to find Filch, and then Filch will quickly rush to the scene of the incident.

Living at Hogwarts has given Filch a large number of secret passages and shortcuts. This makes it difficult for the average student to escape from Filch's clutches, except for the twin brothers,

In the long history of the twins and Filch's long struggle, the twins have won most of their victories.

They even begin to take pleasure in teasing Filch, which makes Filch hate the two brothers to the core.

Of course, Filch is actually a poor man, after all, living as a Squib in a school full of wizards.

One can imagine what kind of cold eyes it will receive, those teachers with strong magic power will disdain it, and the young and ignorant little wizards will always despise and squeeze on it, both openly and secretly.

William quickly exchanged goodnight with the girl, and William made his way up the marble staircase to his dormitory.

"Merlin again! We're just guessing when you'll be back? As soon as William entered, he heard Terry's passionate exclamation.

"I'm just coming back a little late, is this what it looks like?"

"We just bet on why you didn't come back.

Earl guesses you're locked out of the door because you can't answer the door knocker question. Ike thinks you must have gotten lost in the castle.

And I think you must have met Peeves and been tricked a bit.

How about announcing the correct answer for us? Terry said with a smile.

"Actually, on my way back, the black cat stopped in front of me."

", how could there be any black cats in the castle at such a late hour!"

Soon, the eaglets were laughing and playing, and the whole dormitory was filled with a joyful atmosphere.

It didn't take long for the eaglets to go to bed and slowly fall asleep.

William felt like he was in a dream, and in the dream, he was struggling like a drowning man.

William tried to open his eyes, but it was always dark.

The suffocating feeling subsided instantly, and William felt as if he was weightless, falling downward.

In the continuous falling, William opened his eyes suddenly, and above the pitch-black darkness, there were two huge orange-yellow light sources, suspended in the darkness, quietly watching him.