Huge airboats flew through the air, and the five goblin workers operated the airboats in earnest, and the altitude was much higher, and the crash of Glass's airboat was a wake-up call for these goblins.

Lei Ming made his rounds again, looking at the vast and quiet forest below, and couldn't help but smile dumbly, since he had been attacked by the Harpy before, he couldn't sit still, and after a while he would come out to inspect it, and now it seemed that he was too cautious.

As before, this time they returned to the academy very smoothly, and the airboat landed steadily in the academy, and then the goblin workers immediately began to carry the fish-man corpses on the airboat.

These fishmen were eventually transported to the Ancient Tree of Knowledge, and the other members of the team were all enrolled students, and their contribution points could be recorded directly, and Lei Ming, who could not enter the school until the beginning of spring, fortunately it was the Ancient Tree of Knowledge that issued the task, and he directly followed the Ancient Tree of Knowledge back to the eastern area of the academy.

Senior Sister Telt is indeed very good, not only did she not let Lei Ming share the loss, but even compensated Lei Ming a little, and in the end, Lei Ming received one hundred and fifty purple fish people, which is equivalent to three hundred contribution points, and the reward of three hundred contribution points promised by Senior Sister Terte's uncle is estimated to be issued after they return.

"Ha, I've calculated that the fish-people on the surface of the Golden Lake are going to break out in a survival war during this time, you have picked up a big bargain in the past, one hundred and fifty fish-people are enough for you to use now, with so many materials, I have to try to see if I can purify and strengthen the effect of the potion, you can help me do it." ”

The little old man incarnated by the ancient tree of knowledge was in good spirits, and he even broke the secret, Lei Ming was thinking about why they went when all the fishmen on the surface of the golden lake were rushing to the shore, this kind of opportunity can only be encountered once a year or two, it turned out that the ancient tree of knowledge was good, in terms of understanding these details, Lei Ming was far inferior to the old ancient tree of knowledge.

"It's also a great learning opportunity for me. Lei Ming agreed, he originally planned to ask the Ancient Tree of Knowledge for the formula of the potion, and then make the potion himself to forcibly improve his physique, but when he had the opportunity to observe and study deeper experiments, Lei Ming would not refuse.

It was still that laboratory, a large number of fish-people were transferred to the broken ice by the ancient tree of knowledge and sealed, and it was only at this time that Lei Ming discovered that the wooden pier containing the ice cubes had also been refined into a spatial item, and more than a thousand fish-people were easily put into it.

The knowledge ancient tree was very bold, and he took ten purple fishmen at once, and began to collect blood, ready to try if he could increase the effect of the medicine tenfold, if he could, he would choose to add more fishmen, if not, he could only reduce the dosage.

Lei Ming gave a hand to the ancient tree of knowledge, dealing with the corpses of the fish people, these fish people are also big and small, and the blood is also different, the useful blood of each fish man is only a small part, and it is not so easy to collect blood and fuse, that is, the knowledge of the ancient tree is rich in accumulation, and the technology in all aspects is very superb, so he dares to try like this, like the technology of those mages of the human race now, at most it is to deal with a fish man.

"Very good!" the Ancient Tree of Knowledge exclaimed, Lei Ming had already started at the beginning of his contact, separating the blood of different qualities, and discarding some of the poor quality blood directly, saving him a third of his time.

The Ancient Tree of Knowledge put a large bottle of extracted blood on the stand, using a steady flame to start heating, the main component of the blood is still water, and the Ancient Tree of Knowledge is ready to strip a part of the water from the blood.

The volume of the blood decreases rapidly, and there are signs of clotting.

Okay, that's enough! Lei Ming was shouting in his heart, but he didn't make a sound, he couldn't be disturbed at this time, although even if he spoke, it wouldn't necessarily make the ancient tree of knowledge wrong, but it was always immature to express his opinion easily.

At the same time, the Ancient Tree of Knowledge stopped heating, and cast a spell to instantly freeze the large transparent amethyst bottle in his hand.

The sharp change of one hot and one cold is very subtle, if it is not handled well, these blood will be completely destroyed, Lei Ming thinks that he does not dare to deal with it like this when he is not proficient now, and now it is mainly up to the operation of the ancient tree of knowledge.

The cold amethyst bottle was held in the hand of the ancient tree of knowledge, and it returned to room temperature in a blink of an eye, and the fish-man blood at this time was still in a liquid state, but it was very concentrated, exuding a bright red charm, as beautiful as a ruby.

The Ancient Tree of Knowledge skipped the step of adding additives and walked directly to the pot of green liquid that was still being debugged.

This is the most critical step, whether it can succeed depends on this step, and Lei Ming is also very concerned.

"Whew!" The blood that was almost coagulated quickly changed to a light red after a small amount of green liquid was added, but soon, this brief light red was replaced by jet black, and a strong fishy smell followed.

Failed.

The Ancient Tree of Knowledge stared at the failed potion for a few seconds, put it aside, and waved his hand to dispel the meaning in the laboratory, this is within his body, and he can easily purify it.

The entire experimental process just now verified that the idea of concentrating the ingredients of the Ancient Tree was feasible, but this ratio was not ready.

In the next two days, Lei Ming has been helping the Ancient Tree of Knowledge, and at the same time, he has also learned a lot of things, this experiment does not touch much knowledge of pharmacy, but some small skills in operation are very rare, and it is a kind of luck to be able to learn.

Ok!

Another experiment, Lei Ming can't remember how many fish-men he consumed, but there must have been three hundred, and the ancient tree of knowledge held aloft the potion that faded in color and then darkened again, and finally stabilized in rose red.

The Ancient Tree of Knowledge wrote down the data of this experiment, and then poured the potion into his mouth in one gulp, with his current strength, this potion could not harm him at all, so he could try it boldly with confidence.

Yes, the effect is about twice as high!

The Ancient Tree of Knowledge confirmed the final effect, and then proceeded with the fine-tuning experiment.

With this success, it was easy for the micro-call to succeed, and in the end, their test results showed that it was possible to refine a small vial of a potion with twice the effect of about eight fishmen, and it was difficult to judge whether it was worth it.

While he was resting, Lei Ming took a purple fish-man, took out its essence blood, and then disposed of the corpse, and concocted an initial version of the potion for himself, which he couldn't master yet, and it was too luxurious for him.

A warm current rose in his body, and Lei Ming quickly felt the strengthening effect of his physique, but also brought him physical exhaustion, and before setting off to hunt the fishman on the surface of the Golden Lake, he drank the potion given to him by the Ancient Tree of Knowledge, which made him sleep for a whole day.

When the Ancient Tree of Knowledge returned from a trip, he took some things in his hand, he first handed a piece of bark to Lei Ming, and explained: "Lei Ming, this is a temporary certificate, you can always use this certificate in the academy before the beginning of spring, I have stored three hundred contribution points for you, you can go to the academy's material room to get the materials." And this is the recipe for the green potion, the price of the materials used is not expensive, you can go to the material room according to the recipe to exchange for materials, whether you can make it successfully depends on whether you work hard or not, you can live in the mushroom house next to my body, these mushroom houses in the academy were originally for the guests of the academy to live, but there are not many guests in the academy, so there are a lot of idle mushroom houses. ”

"Oh, by the way, take this, you can't exchange this good thing in the material room. Eventually, the Ancient Tree of Knowledge turned over an inconspicuous branch in his lab, almost identical to the one in the basin that was still stirring.

Lei Ming put away all these things, he lives in the ancient tree of knowledge, after all, it is a little inconvenient, the experiment of this fish-man bloodline potion is coming to an end, Lei Ming can just use this time to study pharmacy, he can personally make this kind of physique enhancement potion throughout the whole process, even if he can't use it so much, it is okay to sell it.

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