The Escape Room Illusion: Solving Puzzles with a Dimensionality-Reduction Strike

The ticket inspector's hand froze in mid-air, and his smiling mask tilted slightly.

Zhou Yu tucked the ticket back between his fingers, took Dania's hand with his other hand, and followed the crowd inside.

A popcorn bucket hung on Dania's wrist, the smell of caramel wafting into the corridor. The wall lights were dim, the wooden floor creaked underfoot, and the air was filled with the smells of paint, syrup, and old wood.

Welcome to the Red and Blue Curiosity Hall.

The masked guide stood inside the door, deliberately lowering his voice.

"Tonight you will enter a lost ancient mansion to search for something sealed away by a mechanism..."

Sigelica walked past him, her riot shield scraping against the corner of the wall, leaving a white mark.

The guide got stuck on the second half of his sentence.

Linnai, clutching the bag of fish balls, looked up at the wall covered in bloody handprints.

"This decor is great; I don't even need to add a grotesque filter to the photos."

Aimis hugged the bag of sugar cakes to her chest.

"Is this blood paint?"

Zhou Yu glanced at the wall.

"Don't worry, real blood can't be applied this evenly. Even the client's inspection wasn't as thorough as theirs."

Chisaki squatted in front of the first mechanism door, and a blue line lit up on the tablet screen.

Nine copper rings were embedded in the door, with the Heavenly Stems and Earthly Branches and misaligned star charts engraved inside. A yellowed notice was placed next to it.

The guide finally regained some focus and straightened his back.

"An ancient-style lock. It requires deducing three layers of code based on the poems on the wall. The average player takes twenty-seven minutes."

Chisaki swiped her finger across the screen three times.

The copper rings spun with a clicking sound, then stopped one by one.

The door lock popped open.

The notice hasn't been touched yet.

The guide's mouth hung open for a long time.

Zhou Yu handed the popcorn to Dania.

"See? Knowledge changes waiting times."

Dania grabbed a handful of popcorn and stuffed it into her mouth, speaking indistinctly.

"Chisaki is so fast."

Chisaki adjusted her glasses, and a structural diagram popped up on the screen.

"The cipher set and the mechanism's gear ratios don't align. To reduce the difficulty, the designer included three redundant holes."

She paused for half a second, her tone serious.

Strictly speaking, it's not an ancient mechanism; it's a cheap, mass-produced lock.

In the monitoring room at the end of the corridor, the owner of the Curiosity Hall gripped the back of his chair, sweat beading on his forehead.

A staff member next to him was holding a walkie-talkie.

"Boss, we've cleared the first level."

The boss stared at the group of people distributing popcorn on the screen and gritted his teeth as he squeezed out a sentence.

"That's just the first hurdle, no big problem. The second hurdle is physical; only kids can crawl through the ventilation ducts, they'll definitely be searching for the key for ages."

The second room was filled with upside-down wooden puppets, and the floor was painted with a maze.

The only exit is high up, next to a narrow ventilation pipe, and a brass key hangs behind an iron mesh.

Sigelica glanced at the pipes, then looked at Dania.

Dania, holding the popcorn, took a half-step back seriously.

"I'm not going in; there's no food inside."

Zhou Yu was very satisfied.

"Your self-protection awareness has improved. I give you full marks for this growth today."

The guide quickly held up the script card.

"One player needs to enter the ventilation duct and retrieve the key. Be careful not to damage the environment..."

The riot shield slammed against the wall.

With a bang, the partition next to the ventilation duct cracked.

The copper key, still attached to its hook, fell to the ground and rolled to the side of Zhou Yu's slippers.

Sigelica sheathed her shield, dusted it off, and straightened her expression.

"Sorry, this is more efficient. Please have Supervisor Zhou reimburse the repair cost."

Zhou Yu bent down to pick up the key and casually handed it to Dania as a souvenir.

"Reimbursement requires that the invoices be compliant. Without detailed breakdowns, the finance department will not accept them."

The guide held the script card, his eyes wide open behind the mask.

In the monitoring room, the boss pressed down on the walkie-talkie.

"The third level features NPCs! Scare them! Slow down the pace! Don't let them turn the escape room into a clock-out ceremony!"

Behind the red curtain, a white-clad wooden puppet hangs upside down from the ceiling, emitting a shrill laugh.

Aimis shrank back at the sound, nearly buckling her grip on the bag of candy.

Linnai had already raised the terminal.

"Don't move, don't move, this angle is good. Dania, stand a little to the side, come on, like the heroine in a horror movie, let's take a picture!"

Dania, with a straw in her mouth, obediently lifted the popcorn bucket, looking very well-behaved.

The white-clad puppet swayed in mid-air, and before the laughter had finished, the bell on Chisa's waist rang.

She didn't draw her knife; she simply extended two fingers to pinch the string behind the puppet's neck.

The thread is taut.

A muffled groan came from backstage.

Zhou Yu turned to look at her.

Chisa let go, and the puppet bounced back into the air, then neatly hung on the wall.

"No killing."

She pulled her hand back to her sleeve, her tone steady.

Sigelica held her forehead.

"You're quite restrained."

Zhou Yu led Dania forward, stepping over the scattered wooden planks.

The group behind them turned the secret room into a tourist attraction.

Linnai was in charge of taking photos.

Aimis was responsible for listening to the mechanical sounds behind the wall.

Chisaki was in charge of drawing the spatial structure diagram.

Sigelica was responsible for disposing of all the traps that would trap people in advance.

Zhou Yu was responsible for confirming whether the losses along the way could be covered by the Patrol Department's budget.

After the third hidden door opened, the group entered the deepest prop storeroom.

This place is quieter than the previous ones.

Old costumes, wooden crates, broken fake swords, and several peeling bronze mirrors were piled against the wall. The overhead light flickered on and off, and the bronze mirrors sliced through people's shadows. The red and blue circus logo was printed on the crate lids, and the smiling masks grinned, their paint still fresh.

Qiu Yuan did not enter the museum.

Zhou Yu could sense that the presence outside the door was still at the street corner.

The fact that the Patrol Department didn't move indicates that they are the only ones allowed to probe the area first.

Dania squatted down in front of a prop box, her nose twitching.

"Xiao Yu, this doesn't taste good."

"You can now eliminate food cues by smell."

Zhou Yu squatted down next to her, pressing his fingertips against the edge of the box lid.

The digital watch on my left wrist lit up briefly.

[Abnormal coating: Secondary overlay.]

A gray line emerged from the edge of the red and blue paint on the lid of the box.

This is a camouflage layer that was added later.

He pulled a bottle of adhesive remover from his canvas bag.

Sigelica's lips twitched when she saw the label on the bottle.

Why are you carrying this with you while shopping?

"Logistics personnel must have basic tools when going out."

Zhou Yu unscrewed the nozzle and sprayed the smiley face logo twice.

"Especially when dealing with inappropriate labeling. The first lesson in the workplace: whoever labels it is responsible; if it's wrong, it has to be redone."

The oil paint spread out in the liquid and dripped down the wood grain.

Linnai brought the terminal camera closer.

The spectral curve on the Chisaki plate showed a red peak.

Zhou Yu wiped her face with a tissue, and half of the red and blue smiley face was gone.

What was revealed underneath was not a circus logo, but a black rune.

Three broken chains were intertwined, with an upside-down eye pinned between them.

The bag of candied fruit in Sigelica's hand fell to the ground.

She took a half step forward, her fingertips pressing against the edge of the box lid, her throat tightening.

I've seen this totem before.

Chisa stood by the door, her scabbard positioned across half of the exit.

Zhou Yu first shielded Dania behind him.

Aimis casually blocked the other side.

Linnai stopped joking and steadily focused the terminal camera on the lid of the box.

Sigelica stared at the rune.

"New Federation Transnational Criminal Organization, Defense Line Wanted Handbook, Category Seven."

She lowered her voice.

"They specialize in smuggling resonance materials, container parts, and illegal experimental subjects."

Dania slowed down her chewing of popcorn.

Zhou Yu reached out and ruffled the top of her hair.

"I'm not looking for you, I'm eating your food."

Dania grabbed another one and popped it into her mouth, but she moved even closer to Zhou Yu, her fingers gripping the hem of his shirt.

Chisaki projected the scan results onto the tablet.

"There is residual insulation layer at the bottom of the enclosure, and its dimensions conform to the Class A resonance material stabilizer shell."

She touched the spectrum with her fingertip.

"The circus logo will remain in place for no more than five days, while the underlying runes will remain in place for at least half a month."

Linnai picked up the bag of candied fruit and cursed.

So the circus is just a shell?

"The shell is quite pretty."

Zhou Yu photographed the runes, as well as the box number and the remaining paint.

"The people who actually did the work used these props to enter the city and exchange stolen goods in these dimly lit, crowded, and multi-roomed places."

He archived the photos.

"The Patrol Department checked the performance records, of course they couldn't find it. They hid the answer on the back of the question, playing a game of 'the darkest place is under the lamp.'"

Sigelica clenched her back teeth.

"Did they transport the Star Torch materials here to conduct experiments in Jinzhou?"

Zhou Yu sent the photo to Qiu Yuan and typed a line of text.

"Case closed. Seal off the premises and the vault. Remember to bring the checks."

After the message was sent out, three short and one long brass whistle sounded from the street corner outside the gate.

Suddenly, all the lights in the passageway of the Curiosity Hall went out.

The gears behind the wall were spinning wildly.

One by one, the puppets that were originally hanging on the ceiling raised their heads, their joints making a series of clicking sounds.

The wooden crate at the very back of the prop store popped open by itself.

A cold, white insulating mist seeped out from the seams of the box.

The popcorn bucket in Dania's hand dented slightly.

Zhou Yu looked down and saw a newly pasted note lying at the bottom of the box.

The note was very white, the ink was fresh, and it was specially prepared for him to read.

There are only four characters on it.

Cradle recycling.