As soon as the three of them entered the room, the door slammed shut, leaving only three people staring at each other.

Whisper tried to check where the door had been, and it had been completely replaced by a smooth wall. She looked back at the room.

The décor of the house is very British. Heavy curtains obscure the windows behind the back, and the room has bookshelves full of books, desks for two or three people, large wardrobes, and an oversized double bed.

Whisper walked over and opened the curtains. Behind the curtain is a bare wall.

There was a rare silence in the whisper.

How lazy the organizers are! She thought that there would probably be a decorative window behind the curtain that would not be opened anyway, at least the kind that looked like it had a view, but when it was opened, it was pitch black. Even if it's the worst, you can get a wallpaper and stick it behind the curtains.

I didn't expect to build a wall to fool people, and I didn't even have a window.

"Whispering...... The door is gone. Qing Yan gently pinched Whisper's sleeve, and her voice trembled a little.

"If the door is gone, go find the mechanism." Whispering casually returned, carefully examining the lower curtains and bookshelves. "It's okay, if there are ghosts, they will attack Bai Xuan first, she has the most tender meat."

Should I thank you for the compliment...... Bai Xuan protested in silence as she checked other places.

The bookshelves are locked and have a distinct keyhole in them. Is this the key that needs to be found on the bookshelf? Whisper walked around to the desk and tried to pull open the drawer.

There are six drawers in the desk, but unfortunately each one is locked.

Whisper looked at the desk and groaned, circled around it, suddenly turned the entire desk upside down, then lay down and stretched out his hand to touch up through the gap in the bottom of the desk drawer, and sure enough, he felt something under the desk drawer.

She took her hand out, and it was a letter. Pointing the letter to the candlelight, the music can see that there is a piece of stationery inside.

"Whisper, look here." Qingyan also beckoned to whisper at this time.

Bai Xuan was checking in front of the closet. Whisper took the candlestick and put it in front of the gap in the closet, and could vaguely see that there were only a few sets of clothes in the hollow inside, and there was a small box on it.

This familiar ringing scene reminds Whisper of a game.

This is...... Is the real-life version of an escape room?

She reflexively looked up, then at the corner, to make sure there were no gas tunnels or anything like a time bomb in the room.

Will there be a mechanism on the roof as well?

"Try to check all the places in the house, and it should be rewarding." Whispering explained to Qingyan and Bai Xuan, he tore a very narrow edge along the seal of the envelope, and then took out the letterhead inside, and by the way, checked that there was indeed nothing else written on the inside of the envelope, and then opened the folded letterhead.

"Higher functions?" Whispers mumble to themselves.

Why is there a whole page of complex calculus functions in the envelope? The corners of her mouth twitched, her eyes went from the beginning of the envelope to the envelope, then she choked and silently flipped the letter over.

Madan...... Where did Nie Qian find a page of paper that she couldn't write with the calculus equations? It all the way to the back of the letter?

If this is placed before the existential war, such a complicated calculation will not be human, even if it is used by a computer, it will have to be calculated for several days and nights.

At this time, Bai Xuan seemed to have discovered something, relying on her petite body, crawled under the bed, and then found a small box. "There's a toolbox under the bed."

"Is there something under the bed?" Whispering asked casually, Bai Xuan thought about it, looked at it again, and then shook her head.

"There's something strange on the wall over here, I don't know if it's paint or some mechanism embedded in it." Qingyan also finished some of the inspections and informed the two of them of the results.

Whisper pursed her lips and sat in the swivel chair in front of the desk thinking about something.

The only obvious hints that can be found now are the stationery in his hand and the toolbox in Bai Xuan's place. If, as she understood, the function did represent some kind of hint, then the most likely number as a result of the equation should correspond to a password. But there was no combination lock as far as she could see.

Did she miss something?

Whisper stared at the ceiling, then turned her gaze to the walls and floor.

She stood up and paced slowly around the room, as if thinking about something.

It wasn't until she got to the bottom of the hanging candlestick that she felt something didn't seem right at her feet, so she stopped. Whisper stomped her feet, confirmed, and then took the toolbox that Bai Xuan had found, and directly pried open the wooden floor.

"Sure enough, it's here." There is a dark compartment under the floor after prying. After the compartment was opened, the three of them took out a lockbox from inside.

Qing Yan looked at the lockbox, then at Whisper's other hand holding the letter. "Could it be that the password is the result of this formula......

I wrote two pages of high mathematics and asked them to count what kind of life they would go to! And the ability and the top student are not directly related, right?

"338429" whispered, reaching out and pressing the numbers on the lockbox.

With a snap, the lockbox opened, and a small Rubik's cube was placed in the box.

Qing Yan blinked and suddenly realized. "Whispering, your ability is so handy."

It is really a good note to restore the password of the lockbox directly with the 'Möbius Ring'. There are really a lot of ways to use Whisper's ability, and Qing Yan is a little envious.

The corners of Whisper's mouth twitched when she heard her words, "yes, I can still use abilities." ”

"How else do you know the password?" Bai Xuan was curious.

"Such a simple formula, of course, is calculated by mouth." Whisper was depressed for her rare 'missteps'. Really, a problem that could have been easily solved wasted a few minutes of my time.

Fortunately, Whisper didn't look up at this time, and just happened to miss Bai Xuan and Qingyan's expressions looking at her like monsters.

"Can that formula be so complex as to calculate a cosmic black hole?" Bai Xuan pursed her lips and decided, she didn't believe what Whisper said at all!

Whisper smiled casually, took out the Rubik's Cube and studied it, and then twisted the Rubik's Cube in two clicks.

In these days, there are always people rushing to rush up when they tell lies, but no one wants to believe them when they tell the truth. Sure enough, human beings only believe what they want to believe.

"Is this Rubik's Cube also the key?" Qing Yan asked curiously.

Whisper handed the Rubik's Cube to Qingyan, "Didn't you just find something on the wall?" Try. ”

"Then I'll go check it out." Qingyan heard the whispering words and hurriedly got up to try it.

Whispering grabbed Qingyan's arm. "Don't worry, let me think again."

Why is it that there has always been a wonderful sense of disobedience somewhere since I entered the house? This makes Whisper impossible to ignore. She didn't rush to let Qing Yan try the mechanism, but sat back in her chair and looked at the room again.

Sure enough, what made her feel wrong was the wardrobe.

Whispering's gaze turned over. Why is it that the bookcase is full of books, but there are only a few sets of clothes in the closet? Shouldn't you fill your wardrobe with clothes just for the sake of decoration?

Her gaze swept back to the curtain.

Why did Nie Qian, who didn't even bother to install the windows, put so many books on the bookcase?

She had a flash of inspiration. "Qingyan, do you have a weapon on you?"