It was already the second day after he came out of the lab, and as soon as he went out, several students gathered around him—although Winnie was not a student of Jiayi, she was about the same nature now.

"Teacher, how are you?"

They didn't leave all night, because they were worried about Kayi, and they had been guarding in front of Kayi's retreat laboratory, and if it weren't for the Gasol brothers, they probably understood what was going on and told them, and they would have gone to the council to ask for help.

"It's nothing, I just broke through to become a purple-robed mage, you don't have to worry. ”

It took a lot of mental effort to break through him, a little tired, but very excited, the purple robe level was almost the apex of ordinary mages, even in the Supreme Council, it was enough to hold important positions. Although it was not the apex for him, it was enough to make him happy.

"Congratulations, teacher. The worried expressions of several students disappeared, and suddenly they were a little bright, there was a purple-robed teacher and a white-robed teacher who were completely different.

Brother Gasol walked up and congratulated Jiayi: "Congratulations, Master Jiayi. ”

There was indescribable envy in his tone, although the brothers claimed to be able to fight the mage who had just entered the purple robe, but they were not purple robe mages after all.

Jia Yi said: "Thank you, but I broke through to become a purple-robed mage, and please don't talk about it." ”

"Why? This is a good thing?" Everyone was a little puzzled, this was not an unsightly thing, and it was hard not to be guessed by people who had just fluctuated so widely in their magical power.

"I want to lure out the person who assassinated me, although the range of magic fluctuations just now is very large, but I feel that someone has confused the qi, and the mages who are not here may not be able to find out that it is me who broke through and became a purple-robed mage. At that time, I said that I was affected by this sudden magic fluctuation when I was doing the experiment, and the experiment failed and was injured. It would be best if we could lure the Assassin out and do it himself, just to solve the problem once and for all, and even if it doesn't work, we have nothing to lose. ”

Fortunately, the Thermal Research Institute is on the fringes of the council, and there are not a few mages in this vicinity, and their strength is average, otherwise he may not be able to hide it if he wants to.

The Gasol brothers glanced at each other and nodded slowly, this is indeed a good way, and it is not a way to keep on guard all the time, it is a burden for both Jiayi and the Gasol brothers, and it is very inconvenient.

Jia Yi didn't know how much trouble he had saved himself with this suggestion on a whim, otherwise he would be overwhelmed by the compensation he had to pay for. And this concealment, when the mages who suffered losses know that it was because of Jiayi's problem, and if it has been too long, their anger will not be so tricky.

Jia Yi didn't mean it, it wasn't too serious, and everyone wouldn't want to have a conflict with a purple robe.

When he came to the open space outside, he still held a small test tube in his hand, which contained a tube of liquid hydrogen encapsulated in magic. When the cognitive world was solidified, the spell model in his spiritual sea changed, and he just went out to test it.

The critical temperature of hydrogen is a little more than 38 Kelva, while that of helium is a little more than 5 Kelva, below which the gas can be liquefied. The difference between the two is not just more than 30 degrees, the closer to absolute zero, the greater the energy required for each step, and the smaller the temperature that can be reduced.

When the temperature is below 10 open, the energy generated is already close to the legendary level of spells. Although Jia Yi obtained a spell about absolute zero through the feedback of the source sea, the temperature of the spell that could be released was only 6 or 70 Kai, and at this temperature, the air also began to condense, and if it reached the temperature of liquid hydrogen, the air would also solidify.

After standing still, the Gasol brothers took an ebony target and stood on the grass in front of them, and then quickly came to Kaichi's side.

The liquid hydrogen test tube in Jia's hand shattered in an instant, a cloud of mist rose between his hands, and then turned into a white line that spread towards the target in the distance, leaving a straight white line where the ray passed, like a thick cotton rope, and at the same time, pieces of snowflakes fell down the white line.

The ray hit the target very accurately, and in an instant a burst of frost covered the entire target.

"It doesn't seem like anything special. Sankochia walked over and struck the target with his staff with some curiosity.

When the staff struck down, there was a crisp sound, and the whole target immediately shattered into many pieces, like a glass of candy.

Sankochia hurriedly took a step back, looking at the fragments in amazement, these ebony trees were all frozen inside, showing a crystal color. Ebony is very tough, and is often used as a target for weapon testing, even if a knight slashes with all his strength, it can't be cut, and Gasol takes out a spell attached to it, and has a stronger resistance to spells.

Although it was not difficult for a purple-robed mage to destroy the ebony target, it was rare for a spell like Kaichi's to penetrate into the ebony like this, especially since he didn't seem to spend much effort at all.

"I'm going to borrow a better target and come back, the ebony target can't handle the power of spells of this level. Gasol Jr. said after seeing the target broken into pieces.

"No, I already know the power of this spell. Kaichi stretched out his hand to stop little Gasol, although he couldn't measure the power of this spell, but he had a rough idea of the range of power of this spell.

The use of liquid hydrogen as a casting material can greatly reduce the difficulty of casting this spell, and even a white-robed mage can release a power equivalent to that of a senior purple-robed mage. But this spell also has a flaw, that is, using liquid hydrogen is easy to frostbite himself, and Kaichi now feels that his hands are stiff. And it's expensive, it's not the liquid hydrogen that's expensive, it's the container that holds it.

The test tube that Jiayi used to hold liquid hydrogen was a high-level white-robe-level spell prop, and in order to release it quickly, the test tube needed to be damaged, which was equivalent to using a high-level white-robe-level prop to use it.

However, this power is enough to satisfy Kaichi, and after the helium extraction is completed to produce liquid helium, the power of this spell can be increased again, and even the temperature of the spell will be reduced to within single digits, at which even hydrogen will become solid.

Even legendary-level spells can't really reach absolute zero, maybe it's just a few zeros after the decimal point, liquid helium is already the limit of vaporization and cooling, and if you want to get a lower temperature later, except for the legendary spell, it's probably adiabatic demagnetization.