The thing Gu Nian was holding was a crystal core growing out of a zombie's brain.
"It's an aggregation of immortal matter! That's it!" Seeing the crystal nucleus, the eyes of the four researchers all flashed with excitement.
They call substances whose components cannot be analyzed as immortal substances.
This kind of substance exists in the body of zombies. In particular, the crystal nuclei in the brains of evolved zombies contain the most of this kind of substance.
"Professor Li, with this, our experiment can truly start the next stage!" said the woman standing at the end.
"How long will it take to develop an antiviral serum?" Gu Nian asked.
"It's hard to say... If the materials are complete, the equipment is ok, and there are no particularly serious deviations in our theory, it should be very fast," Professor Li said.
Professor Li is Fan Zhiming’s wife and the core of this small group of four.
"Does the research institute have water and food in reserve?" Gu Nian asked further.
The food and water in her space are obviously not enough for so many people.
"Yes! There is food and water here!" Professor Li said with great certainty: "There is a safe house hidden next to the steps, and a lot of things are stored in it. It is also very safe there. Even the zombies that have gone through four evolutionary mutations
Even the king can't break into the safe house."
"As long as you let us out, we can open the door to the safe house for you." The man next to him said.
Unexpectedly, Lin Chen suddenly raised the corners of his lips mockingly: "It's just opening a door, is it difficult?"
As he spoke, he walked to the end of the passage and steps, to the wall that was only half a meter wide. He raised his hand and groped around on the wall, and suddenly pressed hard on a certain wall tile.
"Squeak!" A secret door slowly opened, revealing a medium-sized room inside.
There are two bunk beds in the room, as well as bottled water, instant noodles and other supplies.
In addition to these living facilities, there are also monitoring equipment and speakers, so you can see the situation inside the entire institute.
It seems that Fan Zhiming was hiding in this safe house and talking to them through the loudspeaker.
"We can release you, but you must ensure that you devote all your energy to the research of anti-viral serum." Gu Nian said.
"Don't worry. We can guarantee this. We also want to save everyone." Professor Li said firmly.
She took a deep look at Gu Nian and Lin Chen: "If you can provide us with more undead matter aggregates, our research speed will be very fast."
In the next few days, everyone lived in the safe house in the basement.
Professor Li led her three assistants and used the institute's equipment to carry out extensive research on anti-viral serum.
Gu Nian and Lin Chen were not idle either.
They would leave the basement every day, use surveillance to find the lone zombies in the institute, deal with them, and take out the material aggregates grown from their heads, and give them to Professor Li and the others for research...
In this way, more than ten days passed.
During the meal that day, Professor Li looked embarrassed at Gu Nian and Lin Chen: "I think our experiment has to be put on hold for a while. Because... the machinery and equipment needed for research have been damaged. And this damage
It is irreparable. If we want to continue research, we have to leave here and go to the world outside the island."