Gu Yi didn't feel discouraged for too long.

Through the deduction just now, Gu Yi has already summarized all the moves of the Dean.

1. Writing notes to change the rules.

For this move, Gu Yi can easily interrupt the dean's casting action through his transformation, so there is no need to worry.

2. Calling the security department.

Gu Yi has a dog whistle, so the security department is not a concern at all.

3. Calling the elephant repairman.

Even though the dean can call for the elephant repairman, Gu Yi still has a spider egg, which can deal with him effectively.

4. Calling the Unspeakable.

This is the most difficult one to deal with. With Gu Yi's current strength, there is no way to solve it.

The Unspeakable just needs to glare at him, and it can immediately banish him to the void, and even reduce his mental power limit.

Without complete preparation, Gu Yi must not attempt to confront the Unspeakable head-on.

Furthermore, the location of the final battle that Gu Yi just found was not suitable.

It was the dean's office, where the power of the Unspeakable is strongest, and Gu Yi has no room to maneuver at all.

"What other clues have I overlooked? Think quickly, think quickly..."

Gu Yi racked his brains but still couldn't come up with any ideas.

He sat on the edge of the bed for a while, no longer entangled, and decided to first go to the archive room to get the giant spider egg and the Dean's diary.

After obtaining the items, the system did not provide any information about the progress of the dungeon.

It seems that he is left with only the last step - defeating the dean and eliminating the Unspeakable.

Gu Yi returned to the ward, lay on the bed, and contemplated for a while, deciding to use his talent to think and maximize the use of time.

(Begin deduction!)

(You lie on the bed, deep in thought.)

(You realize that there's an important character you haven't investigated yet, and that is the dean's wife.)

(You only learned limited information about the dean's wife from the shop owner, specifically her birthday.)

(The fact that the dean uses his wife's birthday as his computer startup password indicates how much he values her.)

(You decide to start the investigation with the dean's wife.)

(You dare not go to the dean's office anymore.)

(If you spend more than ten minutes in the dean's office, the dean will appear.)

(Ten minutes is not enough time for you to conduct an investigation.)

(You put on Toto's mask and leave the ward.)

(You discuss the dean's wife with the surrounding doctors.)

(The doctors look at you in horror and avoid discussing the topic.)

(You attempt to talk to the pig-headed salespeople, but they are equally evasive.)

(The dean suddenly appears in front of you, holding pen and paper.)

(You end the deduction!)

"I can't even have a conversation about this?"

Gu Yi opened his eyes, his heart pounding.

Fortunately, the dean was only preparing to use the power of the rules to deal with him. If he directly summoned the Unspeakable, his mental power limit would have decreased again.

The dean's wife is also a taboo topic in the hospital, and cannot be discussed openly. Gu Yi must find another way to obtain information.

(Deduction begins!)

(You sit on the bed, contemplating.)

(You remember that there is an office in the second basement with a computer.)

(The offices on the third floor and the second basement have a corresponding relationship. Perhaps you can find some information there.)

(You return to the second basement.)

(The door to the secret room in the office is open, and you find that Toto's mother has disappeared.)

(You approach the computer.)

(You take off the mask.)

(The computer transforms into a creepy form, and the tooth-shaped keycaps on the keyboard make you shudder.)

(You turn on the computer.)

(The screen displays the blood-written words "Welcome.")

(The computer prompts for a password.)

(You enter 1205.)

(The computer displays "Incorrect password," and you have two more chances to enter the password.)

(You pause for a moment and enter 0307 and 0910.)

(Blood suddenly gushes out from the computer keyboard.)

(A ghostly face appears on the screen.)

(It crawls out of the screen and bites your throat.)

(Everything before your eyes turns blood-red.)

(You're dead.)

(Deduction ends!)

Gu Yi widened his eyes and touched his neck.

The computer in the basement only allowed three attempts to enter the password, and if it was all wrong, you would be killed.

Gu Yi never expected that the computer in the basement would have a different password from the one on the third floor.

"I've entered another dead end."

Gu Yi sat on the edge of the bed, holding his head.

He couldn't find any more clues to reason with.

"Uh..."

Xu Nian walked over and gently patted Gu Yi's shoulder.

Gu Yi looked up.

Xu Nian pointed at Gu Yi's neck, wearing a worried expression.

"What?"

Gu Yi instinctively touched his neck.

--The black hairs has spread to his neck.

Gu Yi quickly ran to the bathroom and looked in the mirror.

Now his upper body was completely covered in black hair. It was no longer a problem that could be solved with a razor.

He looked at his reflection in the mirror, even his pupils began to dilate.

"In the past few days, I deduced too much in the basement, and my mental power has been eroded too severely. At this rate of erosion, I'll be sent to the crematorium by tomorrow."

Gu Yi clenched his fist.

He didn't have much time left. He had to solve the final puzzle as soon as possible!

Gritting his teeth, Gu Yi used a razor to shave off all the black hair exposed outside his clothes. The hair was too dense and thick, and in some places, it grew faster than he could shave.

Gu Yi ruined three razor blades, and in stubborn areas, he resorted to using a knife to scrape off a layer of skin.

Those areas of skin had completely necrotized, and Gu Yi couldn't feel any pain. Not even a few drops of blood flowed out.

--The situation of mental contamination had become extremely severe.

"At least it's a bit better."

Gu Yi felt completely exhausted. He returned to the bed but found that Xu Nian had already sat up, eagerly looking at the ward's door.

"What's wrong with you?"

"Uh, uh..."

Xu Nian pointed in the direction of the cafeteria.

Gu Yi was dazed for a moment, and then immediately heard the news that it was time for meals in the cafeteria.

He had wasted the entire afternoon dealing with the black hair on his body.

"Never mind, let's eat first."

Gu Yi rubbed his stomach and followed Xu Nian into the cafeteria.

Gu Yi absentmindedly stood in line until Xu Nian reminded him, and only then did he remember to order his food.

"What would you like?"

"Rice, braised pork with radish, stir-fried vegetables."

"That will be 12.5 yuan in total."

"Thank you."

Gu Yi handed over the cash and walked to his seat with his tray.

Suddenly, he felt a chill run through his body.

He remembered a detail he had never noticed before.

"12.5 yuan? Why does the cafeteria meal cost exactly 12.5 yuan? Is there any connection to 1205?"

Gu Yi held the spoon, murmuring to himself in a low voice.

A pig-headed person approached Gu Yi and raised a sign that said "No loud noises."

Gu Yi smirked and continued to eat with his head lowered.

--I never expected that the foreshadowing would be buried so deep.