"Although there is an old man and an old man here, it can be said that it is foolproof, but there is still no need to poison each other! The Poison King glanced at the two of them and explained matter-of-factly.

Zhang Ledao raised his head and glanced at the Poison King, his eyes were full of indescribable complex feelings.

The behavior of the poison king's calf protector is also too ...... Ordinary contests between poison masters are all life-threatening, and those who lose are almost equivalent to those who die!

But the competition between Zhang Ledao and Du Yusheng obviously can't get that step, not to mention that there is a double insurance of the medicine god and the poison king, just say that Zhang Ledao and Du Yusheng are not fighting to the death at all, and they will not be killed at all, and there is no need for the gambling king to be so cautious.

Of course, since the Poison King has been exported, no matter what the reason, the two of them should do what the Poison King said.

The little poison king first smiled slightly and said

"Since I am now a senior brother, I will naturally leave it to you to poison me first!"

Maybe Du Yusheng didn't know when he started to be surrounded by these poisonous insects and the master, and he was constantly suppressed and taught by the master in the use of poison every day, but now that he met Zhang Ledao, a slightly younger peer, he naturally couldn't help but find confidence!

In particular, the master said that this little junior brother is much more profound than himself in toxicological research, which made him feel a little competitive in his heart, and he wanted to personally test how powerful his little junior brother was!

"Since the senior brother is so humble, the junior brother is better to be respectful than to obey his fate!" Zhang Ledao smiled, a hint of cunning flashed in his eyes.

Poisoning yourself first doesn't mean that you won!

Master has passed on a corrosive toxin that is extremely violent, called aqua regia! One drop is enough to corrode this rat cleanly, how can Du Yusheng solve it when the time comes?

Master said that aqua regia is made of concentrated nitric acid and concentrated hydrochloric acid in a ratio of one to three, and it just so happens that these things are always available in their own spatial rings! After all, aqua regia used to destroy corpses and destroy traces, but it was often needed! Now it can be said that it is familiar with it.

I saw Zhang Ledao take out a few transparent glass bottles, and drummed out a bottle of orange-yellow aqua regia after dividing it by two, which looked extremely ugly, just like a bottle of urine.

This made the medicine god and the poison king on the side a little puzzled! Didn't you say that it was poisoned, this kid himself was holding that bottle and jar, where was the long and short sticks tinkering? And the transparency of this jade in this kid's hand was so high! Such a treasure had to ask for a back!

In the incomprehensible eyes of everyone, Zhang Ledao said to this Du Yusheng

"Senior brother, you'd better hurry up! My poison is a little strong!" As soon as Zhang Ledao finished speaking, he splashed the aqua regia into the cage, and in an instant, the fine iron cage seemed to disintegrate like a papier-mâché, and the three mice were naturally not spared, a large amount of aqua regia was sprinkled on their bodies, and the place where they fell was instantly blackened, and then the corrosion continued to expand, but in a blink of an eye, the three mice were all dead and could not die anymore!

Seeing this scene, the little poison king shrank back in fright, and looked at Zhang Ledao with a shocked face.

"What kind of poison is this?"

"This is called corpse poison! It's time for you to dissolve my senior brother! If you don't understand it, this corpse has all disappeared!" Zhang Ledao yawned and stared at Du Yusheng with a smile.

Du Yusheng: "......"

Sure enough, when everyone looked down again, there were still shadows of three rats on the ground, and even the cage was a pile of broken iron filings.

"Goo-dong" The little poison king secretly swallowed his saliva, fortunately the master had the foresight, if he really poisoned his body! he is now ninety percent gone! I don't know if the master can solve it.

The Poison King and the Medicine God were all very serious, because they knew what this thing was!

"Are you sour?" asked the Poison King tentatively.

Zhang Ledao raised his eyebrows, the Poison King was still well-informed! If it weren't for the "Imperial Chemical Essentials" that the master gave him, he really wouldn't have understood what it was!

"Yes! The Poison King's predecessor is really well-informed!"

"Even if it's the Cave Truth Period, I'm afraid I won't dare to use my body to resist such a terrifying thing!" the God of Medicine was also amazed

"Where have the two seniors seen this thing?" This made Zhang Ledao a little curious! The master said at the time! He knew this thing in the entire continent! As long as Zhang Ledao learned it, no one would see the destruction of the corpse!

"It's similar to this, but it seems to be stronger than this!" the Poison King nodded.

"In the past, I traveled to Shenzhou with the old man Yao, and found a waterhole in a col under an active volcano! This waterhole is not big, but it exudes an extremely pungent sour smell!, and whenever a bird flies over or a wild beast passes by, it will fall into the pool and turn into a charred corpse that will shatter when touched! We thought that this was a certain demon beast lurking here, and we were going to kill it when we threw out the flying sword, but when the flying sword entered the water, not only did it not make any contribution, but it was corroded by itself and was directly scrapped!"

"I've never seen such a strong acid!So when we came back, we used vinegar, biological stomach acid, and even monster stomach acid to continuously concentrate in order to reproduce that terrible acid, but no matter how hard we tried, we always felt that there seemed to be something wrong in the direction!"

As he spoke, the Poison King took out a broken sword from the space ring, and Zhang Ledao was directly stunned after just one glance! This corroded and unseemly flying sword turned out to be a low-grade immortal weapon! What kind of acid could corrode a low-grade immortal weapon like this! At least aqua regia definitely can't!

Zhang Ledao's mind spun rapidly, rummaging through his memory, trying to think about what was in the pool.

"Fluoroantimonic acid?or fluoroantimony sulfonic acid?" Zhang Ledao suddenly remembered these two names and blurted out.

"What?" the Poison King and the Medicine God had obviously not heard of this thing, and they all asked in unison.

"Fluoroantimony sulfonic acid, also known as magic acid, is a more terrifying existence than aqua regia, acidity can not only corrode gold and iron, but even the talisman can break through! And fluorantimonic acid is even more terrifying! It is almost the strongest acid in the world, it can be called the strongest acid in the world, used for sudden sneak attacks, and can even kill the super strong people in the tribulation period!" Zhang Ledao said his guess, these two acids are not easy to make, even if it is the master, he also said that without relevant equipment, these two acids cannot be stored!

Of course, in fact, Zhang Ledao did not say that according to the "Imperial Chemical Essentials", the strongest acid is named "carduic acid", and the acidity is tens of millions of times stronger than fluoroantimonic acid!

"This ...... At that time, we tried our best, but we had no choice but to stop! Moreover, that terrifying sour pool was actually afraid of rain, and after a rain, the sour pool disappeared! This can be regarded as completely cutting off our mind to get it back for research!"