This was really no ordinary reagent room. Although the maintenance staff cleaned it every day, when walking in, one could still smell a pungent odor. Lin Fan couldn't care about these things at the moment. He went directly to the strong acid reagent rack, opened the cabinet, took out five bottles of concentrated sulfuric acid with a volume of 1,000 milliliters each and three bottles of concentrated hydrochloric acid with a volume of 1,000 milliliters each, and put them in the basket beside him. Then he got up, closed the door of the reagent room properly, and walked towards the direction of the pedestrian staircase.

Lin Fan slapped his head and cursed himself for being so muddle-headed. He had to put down the basket at the passageway and quickly turned around to go back to his office to get a flashlight.

When Lin Fan rushed back to the original place in a hurry and shone the flashlight at the passageway, he was startled. The basket was gone!

There were eight bottles of strong acid solutions in the basket. These reagents were all controlled reagents. Who could have taken the things away in such a short time? It was already past two thirty in the morning, and no other people were found in the corridor. Who on earth was it?

Lin Fan summoned up his courage and shone the flashlight randomly in the corridor. To his surprise, he found that the basket had already reached the side of the platform on the next flight of stairs, and the eight bottles of strong acid solutions were still there intact. The basket definitely couldn't have flown down there by itself. Someone must have done something.

Lin Fan tiptoed down the stairs, shone the flashlight to look inside the basket, and saw that the reagents he had put in were still there and hadn't been swapped. Lin Fan immediately stood up and shouted, "Who is it? Please come out."

"Doctor Lin, what are you doing with these things so late at night?" A woman's voice suddenly rang out from the passageway above. Lin Fan immediately shone the flashlight over there. The woman quickly reached out to block the strong light. "I'm Zhang Meng. Put the flashlight down."

When Lin Fan saw that it was her, he was so surprised that his mouth opened wide. This little nurse, he really hadn't paid much attention to her usually. He didn't expect that she would dare to come to this dark place alone in the middle of the night. It seemed that she was really brave.

"It's you. Aren't you on duty? Why are you here?" Lin Fan didn't want her to follow him down. The things down there couldn't be seen by outsiders.

"I bought some barbecue at the barbecue shop outside and wanted to ask you to have some together. Unexpectedly, when I came over, I saw you rush into this passageway in a hurry, and then saw you run out from inside in a short while, as if you were in a hurry."

"Oh, I see. Thank you. I'm not hungry for now. You can go back first. I'll go home after I finish my work."

"I saw that there was strong acid in your basket. What are you doing with so much strong acid reagent?" Zhang Meng asked curiously.

"You already know?" Lin Fan put down the basket, rushed up in two or three steps, faced Zhang Meng, and whispered in her ear, "Can you help me keep this secret?"

It was the first time that Zhang Meng had talked so closely with Lin Fan. Lin Fan's breath blew on her ear, giving her a ticklish feeling. She nodded sweetly, "I won't tell anyone. But can you tell me what you're going to do with these?"

"Sorry, it's not that I don't want to tell you, but as you know, these things are all prohibited reagents, and I'm in urgent need of them..."

"Oh, I understand. It's okay if you don't want to say. I trust you." Zhang Meng nodded understandingly and then giggled, "Your footsteps were so fast just now. I originally hid here to scare you, but you rushed down with a thud. Okay, I won't disturb you. Go and do your work quickly. When you're done, come to the front desk. I've reserved some barbecue for you. You should at least have some."

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Lin Fan could feel that this little nurse was very considerate of him. However, at this time, Lin Fan didn't pay attention to these things at all. He just hoped that Zhang Meng would leave quickly. When he saw her turn around and leave, Lin Fan secretly breathed a sigh of relief. He quickly replied, "Okay, I've remembered. You should go back to the front desk quickly. It'll be troublesome if there's an emergency patient."

"Um, I don't know what's going on downstairs. It seems that there's a power outage. Be careful when you walk with the flashlight on." Zhang Meng nodded behind him and didn't forget to remind Lin Fan before leaving.

"I know. Thanks for your kindness. Okay, I'm leaving." Lin Fan rushed down with a thud, picked up the basket, and walked downstairs.

When he reached the stairwell on the fourth basement floor, he put down the basket and moved his wrists a bit. To be honest, these eight bottles of concentrated acid solutions were quite heavy.

"Thud, thud." Lin Fan clearly heard the sound of footsteps coming from the corridor on the fourth basement floor behind him.

Suddenly, Lin Fan had a bad premonition in his heart. In the middle of the night, how could there still be people in the corridor? It was absolutely impossible. Lin Fan turned off the flashlight, crouched down quietly to listen, and the sound of the footsteps became more and more obvious. Moreover, it was obviously not the footsteps of just one person. The steps were messy, clearly belonging to multiple people!

Lin Fan quietly tiptoed forward and walked into the corridor on the fourth basement floor. In fact, there were more than a hundred rooms on this floor, and all of them were filled with corpses of various ages soaked in formalin! There were a total of more than five hundred corpses!

Lin Fan quietly walked to the corner. That was the main corridor on the fourth basement floor. When he used to lead others to store corpses, he often moved around in this corridor.

Lin Fan crouched down and quietly poked his head out. Unfortunately, it was pitch black in front of him, and he couldn't see any objects at all. In this corridor where one couldn't see their fingers even when stretching out their hands, the sound of the thudding footsteps was really unbearable.

Lin Fan took a long breath to boost his courage in his heart. When he found that the footsteps had moved a little further away from him, he suddenly turned on the flashlight switch!

A beam of light directly illuminated the corridor in front. Lin Fan was immediately stunned by the scene in front of him. In the corridor, fragments of human bodies and traces of blood and flesh could be seen everywhere. More than ten zombies close to him all turned their heads to look at the position where Lin Fan was shining the light. They were very sensitive to light!

Lin Fan immediately stood up and rushed towards the direction of the pedestrian corridor. When passing by the door of the passageway, he remembered the basket he had brought. He shone the flashlight over there and saw a huge zombie squatting beside the basket, looking down curiously at the concentrated acid in the basket.

That huge zombie left a deep impression in Lin Fan's mind. It was exactly the giant zombie locked with iron chains in the fifth room of Professor Wang's private laboratory!

Just one look at it would leave a deep impression in one's mind! Why weren't they all dead? Did the destruction device on the fifth basement floor have no effect on it? Also, had Professor Wang's corpse also turned into a zombie?

A lot of questions suddenly emerged in Lin Fan's mind. Unfortunately, at this moment, it was definitely not the time to ask these questions. Lin Fan rushed upstairs at a fast pace, thinking in horror, "What should I do? What should I do? This is a typical case of zombies breaking loose!"

"Smash!" Suddenly, the giant zombie picked up a bottle of concentrated acid with its right hand and threw it in Lin Fan's direction. Its movement showed no sign of stiffness at all, no different from an ordinary person throwing something!

"Bang!" The bottle of concentrated acid shattered on the ground. The concentrated acid splashed on the ground and immediately corroded the ground. A large cloud of thick smoke rose up and filled the whole passageway.

Lin Fan's right foot just stepped on some concentrated acid. He felt that his foot was constantly smoking. After quickly climbing up two flights of stairs, he shone the flashlight over. The concentrated acid had completely melted the right boot, and his toes were exposed. Lin Fan couldn't care about these anymore. He quickly took off the shoe and threw it at the giant zombie downstairs.

"Ah!" At this time, a shrill scream of a zombie came from the downstairs direction. The sound was extremely harsh and instantly spread throughout the whole floor. Lin Fan shone the flashlight downstairs and saw clearly that many zombies had stepped on the concentrated acid with their feet, and the concentrated acid directly melted the flesh of the zombies, exposing their ghastly white foot bones.

And the one that let out the scream was the giant zombie. The other zombies didn't know pain at all and just kept chasing upstairs. The zombies in front with their white bones under their feet tripped the zombies that wanted to continue chasing behind them.

The hands of the giant zombie showed its white and ghastly bones. With a loud shout, it quickly ran into the corridor on the fourth basement floor as if it was conscious.

Lin Fan was dumbfounded by this strange giant zombie!