Professor Wen took the door and looked into the corridor, as if he was afraid that the wall would be heard. He confirmed that there were only him and Mo Chen on this floor.

Professor Wen pushed down his glasses and said seriously, "Do you think Li Chao seems to know what's going on here?" When he said this, Professor Wen raised his hand, rushed down and pointed to the ground with his index finger, intending to this room.

When he came up, Li Chaoduo tried to persuade him, and Mo Chen felt that he was a little strange.

Although Li Chao later explained that he was afraid of the smell of disinfectant water in the hospital, the reason was too unconvincing.

Mo Chen nodded, "But it's obvious that he is not willing to tell us the truth."

Professor Wen said, "We should pay more attention to the words of this npc guy and deliberately arrange for him to appear by your side. I must have his intention."

"This is natural." Mo Chen said.

Immediately, Mo Chen expressed his opinion again. He felt that Li Chao had dissuaded him not to go upstairs to check the situation, not that he really wanted him to come.

Instead, it is deliberately emphasized that being single-handed is too dangerous!

When the three of them were together, Li Chao was willing to accompany him, so he seemed to be deliberately saying this to Professor Wen.

Although Professor Wen is knowledgeable, he is over fifty years old. Just like when he is in the operating room, when he is in danger, he not only cannot become Mo Chen's helper, but is a protected role.

So what is the purpose of Li Chao insisting on asking Professor Wen to accompany him to go upstairs?

Could it be that... what Li Chao really wants is to act alone?

Mo Chen expressed his thoughts, but when he was talking about Professor Wen's physical strength and age, Mo Chen tried his best to make his words more tactful.

"Well... this is really strange." Professor Wen agreed with Mo Chen's idea. He asked Mo Chen, "Well, should we continue to go upstairs? Or should we fight back? Maybe, when we suddenly go back, we will just bump into him."

Mo Chen thought sideways, "Forget it! This is my guess after all. Since we are here, we should go upstairs first. There is no need to go back and forth, and waste time."

Professor Wen took the lead in walking out of the room. When Mo Chen was about to go out, he casually walked away a syringe thrown in the corner of the wall.

A syringe that is forty or fifty centimeters long and the thickness of a little finger is left with half a tube of turbid liquid.

Mo Chen was sure that this was the drug injected by the group of people in the house during their lifetime.

Mo Chen took away this half tube of venom, not because he had this hobby, but he had a sudden idea, and it would be nice to keep this thing to defend himself.

Mo Chen and the others walked into the stairwell again and climbed up the fourth floor along the stairs. What people unexpectedly expected was that after the stairs reached the fourth floor, there was no more road to walk.

A dilapidated iron door stood at the end of the stairs, and Mo Chen used a torch to illuminate it with a huge iron barrel on the inside of the iron door.

A large black lock was hung on the iron door, and a famous sign that could not be removed was hung on the fence, with the sign saying "Boiler Room".

"It seems that our expedition is over here." Professor Wen quipped.

Mo Chen pulled the corner of his mouth in disappointment. They have completely explored all the secrets of the hospital?!

Mo Chen still felt a strange feeling in his heart, and he always felt that something had been missed.

"Let's go!" Professor Wen said, then turned around and went downstairs with a torch.

Mo Chen was about to follow him, but when he turned around, he suddenly remembered something.

Mo Chen suddenly shouted, "Wait a minute!"

"Hmm?" Professor Wen stopped and looked at Mo Chen in confusion.

Mo Chen said excitedly, "This is not right! I remember that when we came here to shelter from the rain, we saw it clearly on the fifth floor outside the building.

And just now, we only walked through the third floor. Even if the boiler room is on the fourth floor, it is still one floor short."

After being reminded by Mo Chen, Professor Wen suddenly remembered this detail. Then he pulled back his steps, walked to the iron gate, and tried the big lock on the door. The world inside the door was still firmly bound.

Mo Chen carefully held the torch and reached into the fence gate. The flame immediately illuminated the so-called boiler room.

The huge iron barrel goes up to the roof, but it can be confirmed that the lifting frame on this floor is no different from the three floors downstairs, which eliminates the possibility that one floor of space can occupy two floors.

Next, the inside of the iron barrel, that is, in the opposite direction to the iron door, is a solid wall and there is no window.

So what happened to the windows on the fourth and fifth floors outside the building?

Supernatural event?!

This idea popped up in Mo Chen's mind at the first time. He had seen this type of novel when he was a student.

The floors the protagonist of the story always sees are always different from those he can reach.

Could it be that what happened today fell on Mo Chen?

"Can it be... there is a passage on the back of this boiler that can reach the real fourth and fifth floors?" Professor Wen said.

Mo Chen carefully looked at the "big iron bucket" that reached the roof. Perhaps as the professor said, on the back where they could not reach their sight, there was indeed a secret door and entrance?

"I'll look for tools to see if I can smash the lock open." Mo Chen said, and quickly returned to the third floor, leaving Professor Wen alone looking around in front of the iron gate.

No matter whether there are tools or not in the operating room, Mo Chen doesn't want to go there anymore. Compared with the thirteen corpses in the chief physician's office, the bodies of virus-infected people in the operating room are even more terrifying.

No matter how brave Mo Chen is, there is no need to take risks. Fortunately, there is a storage room next to the chief physician's office.

Mo Chen accidentally found a tool box for electricians on the bottom floor of the shelf filled with medical staff. There happened to be a pair of iron pliers in the tool box.

Mo Chen grabbed the pliers and clamped them twice, feeling that he could almost cut off the lock. After all, the lock only looks big, but it is actually a U-shaped part used to hang on the door, which is pitifully thin.

After getting the tool, Mo Chen turned around and ran back to the fourth floor, but at this moment, his little heart couldn't help but skip a beat.

There was no shadow of Professor Wen in front of the Tiemen. If that were the case, Mo Chen could comfort himself.

Perhaps after he went downstairs, Professor Wen also went downstairs to help find tools.

But at this moment, Mo Chen could not convince himself like this, because... Professor Wen's torch fell on the edge of the iron gate.

Mo Chen picked up the professor's torch and pinned it on the fence to avoid any accidental and causing a fire.

Mo Chen tried to call out "Professor~~" As expected, no Professor Wen's response was heard.

Where did Professor Wen go? The torch fell to the ground, which means that the professor was panicked just now.

But Mo Chen was just on the third floor. Even if there was a noise outside, there wouldn't be any sound that didn't happen!?
Chapter completed!