University of Twilight, 3rd basement, biochemical testing ground.

In the thousands of square meters of biochemical test hall, all kinds of parasites, petri dishes and biological corpses can be seen everywhere, and dozens of professors and assistants in white coats are busy with each other's experiments at hand.

Outside the innermost compartment, four dragon knights and two Valkyries stood expressionlessly outside the door, like eternal sculptures.

In the cubicle, Todd, who had changed into a lab coat, was standing behind Wayne Dunlop, flipping through the other party's just-completed experiment report.

Dressed in a biochemical lab coat and wearing cotton gloves, Wayne carefully pulled out a glass box from a steaming box.

In the center of the box lies a transparent, crystal clear nematode.

Wayne leaned behind him and asked, "Your Majesty, do you know this thing?"

Todd, who was observing the insect body, nodded and said, "The soul regeneration worm, a special parasite brought by Eleanor's men, can swap the souls in two bodies...... But what does this have to do with the black plague we are talking about?"

Wayne waved his hand: "Don't worry, before we explain the Black Plague, let's talk about the soul first." ”

"Soul?"

Wayne put away the soul regeneration worm: "Your Majesty, you remember that I once conducted an experiment with a dying man - the weight of the soul. ”

"Why are you discussing that experiment?"

Wayne said to himself: "I have concluded in soul experiments that a person's soul has a certain weight according to age, gender, and education, some are a few grams, and some are heavier. ”

"I began to think that the soul was an invisible lightweight particle, but after trial and error, I rejected this hypothesis. ”

"Later, in the Heavenly Library, I read some books that mentioned that the soul could be a dark energy. I wondered at the time if the soul was not a substance, but an energy, then it might have influenced moments and force fields. ”

Todd frowned and said, "There's no need to go into a long speech, just say it directly." ”

"Okay, I say the conclusion. The soul is actually a very peculiar energy field that can change the magnetic field and gravitational pull around it when it flows. When a person dies, the soul is released, and a jet of field energy is generated. This jet is capable of influencing the surrounding gravity, creating a dark matter-like mass, creating the illusion that the soul has weight. ”

Todd rubbed his temples, "Wayne, can you ......?"

"Your Majesty, I will soon get to the important part. Those black parasites in the Black Plague can turn corpses into monsters that never die. I experimented with some samples of the black parasite, and when the black parasite infects a living creature, it gains a little bit of weight, and when it is killed, it loses a little bit of weight. ”

Todd kind of understood: "You mean to say that the black parasite extracts the soul of the infected, and when it dies, it releases the soul stored in the body?"

Wayne nodded, "That's right, I was thinking that this mechanism of the black parasite is very similar to a creature. When the soul regeneration insect is transferring souls, its weight also changes in the same way as the soul enters and exits. ”

Todd turned his gaze to the glass box and said softly, "It looks like it does." ”

Wayne stared at the transparent nematode and said, "I'm beginning to suspect that the soul regeneration worm is the original sample of the plague parasite. The group of the Presbyterian Church somehow biochemically modified the Soul Resurrection Worm and obtained the final product of the Black Plague Parasite. ”

Todd thought as he said, "The Soul Resurrection Worm is the original form of the plague parasite, this discovery is very important, but the question is how is the process?"

Wayne: "I dissected and examined the plague parasite and found traces of the Tyrant virus and Sutherland archaea inside. The endoplasmic data of Sutherland archaea is severely exceeded, and the bacteria themselves have mutated, becoming more dangerous and manic, and will continue to engulf and assimilate other cells, which is the main reason why plague parasites infect other organisms. The Tyrant virus has completely changed the genetic makeup of the parasite, transforming it into a genetic factory that constantly selects, replicates, and preserves those genes. ”

Todd said with a headache, "That sounds like the Plague Parasite is more like an invulnerable machine. ”

Wayne: "Every creature has weaknesses, it has predators, and it's all about finding that crucial key. ”

"But then again, the Soul Resurrection Worm is very fragile, it has extremely strict requirements for temperature, humidity, and pressure, but the Black Plague Parasite is extremely adaptable. I never thought that the Soul Resurrection Worm would be able to create such a terrifying creature under the combined influence of the Tyrant Virus and Sutherland archaea. ”

Todd proposed, "What can we do now?"

Wayne: "I need more samples of the Soul Resurrection Worm." I need to build a biological evolutionary model that simulates how the Soul Resurrection Worm becomes a plague parasite. Only in this way can I find its weak point in the process of evolution and prescribe the right medicine. ”

Todd: "But we only have this one soul revenator. ”

Wayne: "That's right, this Soul Resurrection Worm is the only sample we have on hand, and I don't know how to breed it. If I use it for experiments, if it fails, it means we don't have any spare samples. ”

Todd pondered for a moment before he spoke, "I know where to go to find more Soul Resurrection Worms, but the process may not be easy. ”

Wayne followed up and said, "In addition to the Soul Restoration Worm, it is best to find a cultivation method for the Plague Parasite. ”

Todd was a little embarrassed: "The Black Plague Parasite evolved from the Necromantic Successor, and their creator is Theodore of the Presbyterian Church, but the latter has been killed, and all the manuscripts have fallen into the hands of the murderer's throat bone, and it is difficult to find a way to cultivate them. ”

Wayne: "Well, if I don't have a manuscript of the cultivation method, but if I can find a sufficient number of samples of the resurrection worms, I can also use the group experiment method to slowly explore the cultivation process of the plague parasite, but this process will be very lengthy and will take a lot of time. That's why I recommend finding as many ways to culture parasites as possible. ”

Todd nodded: "It is imperative that I obtain as many samples of the Soul Restoration Worm as possible as soon as possible, and as for Theodore's cultivation manuscript, I can try to find it, but I can't guarantee it." ”

Wayne sighed: "Your Majesty, I heard that the corpse tide in Taylor City is getting bigger and bigger, and it is spreading to the surrounding area, I hope everything can be in time." ”

At this moment, a herald passed through the layers of sentry posts and came to the door of the experimental hall.

"Your Majesty, the military report of the Principality of Duokeqi. ”

Hearing the guards' briefing, Todd and Wayne glanced at each other.

Wayne shrugged: "Your Majesty, from your expression, I can guess that it must not be a good thing. ”

Todd closed his eyes and whispered softly, "The plague is starting to spread. ”