Overlord: Start from the Goblin Lair.

In the past, Ron would not stay in the laboratory after midnight. This was not only a rule of the laboratory, but also a limitation of his physical and mental strength. Being in the experiment for a long time would increase the probability of problems. More importantly, the probability of danger would also be higher.

Some places would treat it as a strange story or legend, but in these stories, many researchers sacrificed their lives after sacrificing countless hairs and livers. Before, Ron would never try to trample on this law.

But now it's different. He is no longer an ordinary person, and he doesn't have that much time to rest.

"Even so, you should take a short rest..." Lavinia walked in from outside with dark circles under her eyes. In the past three days, her average rest time was only four or five hours. In between, she just barely recovered her spells before continuing to devote herself to the experiment.

But she never expected that Ron would work harder than her! She never saw him rest!
"Even if you don't need to rest, you always need to prepare your spells again—" The halfling lady yawned repeatedly, as if she might fall asleep again at any time.

"That's not necessary."

Ron casually uncorked a bottle of potion beside him and poured it into his mouth. As the potion went down his throat, his eyes narrowed slightly, and opened again after a moment. The bloodshot in his eyes disappeared, and a little magic power surged from his body again.

This potion was not the kind of expensive stuff that could allow the caster to sleep for a while and then rest as if fully rested. It just allowed him to cast a few low-level spells. In adventure, such a potion was useless, but in research, it was enough.

After all, most of the magic required for alchemy is even tricks, and there are not many spells that really need to be used frequently. As for those more powerful powers, they are really secondary effects among secondary effects in assisting alchemy.

For example, the prayer spell that Gillianis had performed before, using it to create materials and instruments, was probably something she was the only one in the world who could use in this way.

"Is this your nth attempt?" Gillianis had been acting as Ron's assistant, taking care of his health and safety. Seeing Ron performing magic again and dropping three drops of prepared potion into a petri dish, she couldn't help but ask.

According to her observation, when this step is reached, it means that the development of the drug itself is nearing completion, and the next step is verification, first with cells and tissues, then with animals, and finally with patients.

But in the past three days, she had only seen Ron take the final step once! And that one time, the patient with relatively mild symptoms recovered immediately!
Although the man was infected with the so-called "demon plague" again just a quarter of an hour later, in Gillianis's view, it was already a success.

However, Ron did not seem satisfied with this, which led to more attempts later.

At this moment, Ron devoted himself to the experiment and did not care about Gillianis's thoughts. With the help of instruments, Ron watched the effects of the drug on cells and the plague pathogen in vitro. After a moment, he slowly raised his head and rubbed his temples tiredly.

"This is the fifth attempt. After the previous attempts, I have basically figured out the groups and structure of the pathogen, and know how it affects the body. This time, I tried to use compounds with similar structures to competitively inhibit its effects, reduce the concentration of pathogens, and finally achieve a therapeutic effect." Ron explained the principle in general terms to Lavinia, Gillianis and the other two, but the halfling was obviously in a bad state, and only Gillianis could really listen.

The reason why pathogens can cause harm to the body is that in many cases, specific parts of some of the substances can bind to specific receptors in the body, directly or indirectly producing harmful substances. What Ron has to do is to choose substances that are more easily combined with those receptors, snatching the limited receptors, thereby cutting off the pathogen's path to take effect.

"Although the magical effects of the 'Demon Plague' are different, they are similar in principle..." Ron took out another petri dish and added a drop of black liquid like ink while dripping the potion into it. It was a substance he extracted from the blood of Aiksuri, which could curb the magical effects of the Demon Plague!

This may be one of the reasons why the ogres are not attacked by the plague. After all, although they are weak, they do have the blood of dragons flowing in their veins. These ogres in the Delusion Land also worship Ik'Thuri, which probably strengthens their qualities in this aspect.

As for whether any dragon has such power, or only the black dragon can contain the plague caused by the black dragon lich, Ron is not quite sure about the principle, but in the case of limited time, knowing this is enough!
What’s more important is that the substances extracted from Exure are compatible with almost any drug!

This was not unexpected to Ron. Dragon blood was a very versatile raw material in the field of magic, and dragons themselves were extremely powerful. It would be strange if they rejected everything.

In this way, the magic part of the plague, which was originally the most difficult, became the simplest part. The problem lies in the medicine itself!
"Didn't you succeed once before?" Gillianis looked at Ron's eyes and knew that he might fail again this time. "Why don't you make changes based on that formula?"

"Or you can just take it out directly," Gillianis, who was wearing a long skirt, immediately persuaded, "give some comfort to those people outside first, after all, it works, right?"

"When you comfort someone too much, it's easy to become desperate," Ron lowered his head and recalculated on paper with his emerald fountain pen. "Besides, the drug itself is not harmless, even if I purify the effective substance as much as possible."

"The problem lies with the compound."

Ron put down his pen and looked at the several structural formulas he had drawn on the paper that looked quite similar. He sighed slightly and said, "Although the ingredients in natural medicines are relatively easy to use, their structures are not the optimal solution and cannot achieve the theoretical effect."

This is a natural conclusion. These organisms have evolved for billions of years since their birth, and the vast majority of the substances they have produced are for their own reproduction and survival. They do not synthesize these substances in order to provide other organisms with the ability to cure all diseases.

"But there are so many herbs in the world, there must be a suitable one, right?" Gillianis was silent for a moment. She was knowledgeable and knew that this situation was common and it was not just that they were unlucky.

"Seven days is too late to find it," Ron shook his head, but the Moon Elf saw that his eyes were getting brighter, "Gillianis, I'll have to trouble you to get me some more equipment!"

"what are you up to?"

"It's similar to the principle of the wish spell," Ron licked his lips, "If I don't have anything on hand, I'll make it myself!"

"Have you ever heard of a discipline called... Medicinal Chemistry!" (End of this chapter)