It was already 2 o'clock in the morning, and they went back to the ground floor classroom where they had stayed to rest, planning to talk about it tomorrow.

The whole thing seems to have been solved, and the whole thing started when some professors from the Faculty of Biological Sciences set up a research group to cultivate a new type of cherry tree, but this cherry blossom has the ability to induce genetic mutations in the human body and become mutants with degenerative organs.

Now that they have obtained the gene shielding agent that can avoid being attacked by the mutant species and being affected by the mutated cherry blossom tree, all that remains is to find Gu Xiuwen's missing sister and the person named Ali.

However, for some reason, Ye Lin felt that they had just walked into this puzzle, and the qiē in front of them seemed to be covered by a layer of mist that seemed to be far away, and it was difficult to reach out and touch it. A flashing black shadow, Gu Xiuwen's sister's notes, confidentiality agreement... Ye Lin couldn't sleep all night, just thinking about the whole thing with his eyes open, and didn't notice the passage of time at all.

"Are you awake?" Gu Xiuwen rubbed his sleepy eyes and saw Ye Lin sitting expressionlessly on the table beside him.

"Huh? What time is it? Ye Lin detached from his thoughts.

Gu Xiuwen shook his arm that was numb, held the watch in front of him, and said, "It's already 7 o'clock in the morning, do you have any plans?" ”

After hearing this, Ye Lin jumped off the desk, moved his muscles, and said, "I think we still need to go upstairs to investigate, yesterday's black shadow and your sister's handwriting are really weird." ”

Gu Xiuwen nodded, took out the note he picked up yesterday next to the trash can from his pants pocket, and then opened it to look at it, the handwriting was messy, and it could be seen that the author was in a hurry, hurriedly left the handwriting, and then crumpled it up and threw it into the trash can, I don't know what happened to her.

Ye Lin said: "If your sister is still alive, it is very likely that she is in this building. ”

Indeed, Gu Xiuwen's sister has mysteriously disappeared since three days ago, and with the strange events that have occurred in the past few days, the most likely location is this courtyard building, the source of the entire incident.

Gu Xiuwen obviously couldn't accept the news that his sister was dead, and even if there was a glimmer of hope, he would insist on looking for it.

He clenched his fists and said sternly: "You're right, my sister is very likely to have been kidnapped, maybe this professor named Fu Changqing did it." ”

Ye Lin suddenly heard this name, frowned, and asked, "Fu Changqing?" Whose room was the real yàn that we went in yesterday? ”

When Gu Xiuwen heard this, he immediately understood her thoughts.

Yesterday they found that the real room of the gene shielding agent was Fang Lei and Wu Yaoling's, but there was another person mentioned by the girl named Bi Kailuo, and that was Fu Changqing. They only found information about Fang Lei and Wu Yaoling in the office, but they didn't mention anything about Fu Changqing, and obviously judging from Bi Kailuo's conversation, this person named Fu Changqing was obviously a key person, but they found a solution to the problem in Wu Yaoling and Fang Lei's real room.

What's going on?

Ye Lin pursed his lips and said, "I'm afraid there is still information that we don't know, and this may also be related to your sister's disappearance." ”

Following yesterday's route, they came to the fourth floor again. When the day dawned, the light here also brightened, and all the furnishings were the same as at night, the only thing that changed was that the door of the real yàn room on the right was wide open, as if something had happened here.

Ye Lin and Gu Xiuwen glanced at each other, the two of them lowered their footsteps, and cautiously moved towards the door of the third real room.

Ye Lin looked at the door little by little, and there were several real platforms inside, all of which were very neat and tidy, without any traces of fighting, and seeing that there was no one inside, Ye Lin raised his feet and walked in.

Yesterday, when they opened the door of the real yàn room in the middle, a large wave of mutants poured out, and it took her a lot of effort to solve them all with a chainsaw, but it was obvious that there were no mutants in this real yàn room.

The meaning of the two lines of words on yesterday's note is that there are mutants in these three real rooms, and the person who opens the door only has one chance, otherwise he will be killed by the big wave mutant because the chainsaw has no electricity.

But there were no mutants in this room next to it, and they had come here yesterday and this morning and someone had come in the middle.

Did that note deceive them?

Gu Xiuwen suspiciously stepped forward and rummaged through it, thinking that he had found some clues like yesterday.

"Gu Xiuwen, come and take a look." Xiu Wen was rummaging through the cabinets when he suddenly saw Ye Lin calling him in the sterile room.

"What, what's going on?"

Gu Xiuwen walked over and saw Ye Lin standing on a device that was exactly the same as the one in which the gene shielding agent was placed yesterday, the door of the locker was wide open, and the inside was empty.

Someone took the contents away.

An even greater confusion swept through the hearts of the two, if the person who came took something similar to the gene shielding agent they got yesterday, then what the hell is it?

I rummaged through the entire real yàn room again, but still found nothing.

Ye Lin shook his arm that was already numb, and said, "We've searched all over here, let's go look elsewhere, we haven't seen Fu Changqing's office yet." ”

Obviously, apart from this, Gu Xiuwen couldn't think of a better way, so he could only listen to this opinion and walked out of the door unwillingly.

Just as they were about to step out of the threshold, Ye Lin felt a gust of wind in her ears, as if a sharp weapon was waving towards them, her subconscious wrist twisted flexibly, and the fruit knife in her hand was thrown out.

"Uhh In the empty hallway, I suddenly remembered a woman's scream.

Ye Lin turned his head and saw that there was a girl ambushed at the door, trying to knock both of them unconscious with a stick when they went out.

The appearance of the girl who fell to the ground was very familiar and familiar.

Gu Xiuwen leaned into Ye Lin's ear and whispered, "This girl is Bi Kailuo's gang, we have met before." ”

Ye Lin pulled her hand neatly and lifted her body up, and the woman felt the tear of her wrist and screamed again.

"Shut up!" She snorted, holding the girl with one hand, and at the same time motioned to Gu Xiuwen to find something from the real room that could fix people's hands and feet.

He took a roll of duct tape from it and handed it to Ye Lin. She was about to put her hands and feet together when there was a sudden sound in front of her.

"Stop!"