Gu Yihan looked at Hongding, still a little unconvinced, can this thing be alchemy? Hongding seemed to understand Gu Yihan's meaning, and suddenly changed, it was as big as a plate, and the meaning was obvious, that is, I was very good at alchemy.

Gu Yihan picked him up, walked into the hut, and went to read the book of alchemy, the first thing he saw was a basic elixir, the Gathering Spirit Pill, which can speed up the absorption of spiritual energy when taking it during cultivation. A kind of elixir that many spirit masters need, there seem to be those medicinal materials in the space, the black horned wooden dog leaf vine star grass condensation source fruit.

Gu Yihan got 3 medicinal materials and was ready to try it, but how did the fire come from, according to the book, there are several kinds of alchemy fire, ordinary fire, and beast fire, in which it is the spiritual fire of heaven and earth, and there are several inheritance fires of ancient times. But Gu Yihan has nothing now, and he has to go outside to find ordinary fire.

Xiao Yan walked over, "I'm a nine-tailed fox, use my fire." Gu Yihan didn't know that Xiao Yan actually had beast fire, some demonic beasts did not have beast fire, and the demonic beasts with beast fire were all high-level demonic beasts. But Gu Yihan ignored it, what Xiao Yan said before was that he was a divine beast, and the fire of the nine-tailed fox was not an ordinary beast fire, and when Xiao Yan grew up, it might be the fire of inheritance.

"And you're going to spray me some?" Gu Yihan asked Xiao Yan suspiciously.

"No, you can use my fire as you like after you make a contract with me." If other alchemists want beast fire, they have to catch the beast, and if they don't make a contract, they can only take out the natal inner pill of the monster after killing the beast, and absorb the beast fire inside to have the beast fire. The process is also very painful, and only the contract is the most convenient.

Contracts are divided into master-slave contracts, slave contracts, and equality contracts in terms of form.

Master-slave contract: A contract signed between the master and the servant, after the contract is signed, the servant will be absolutely loyal to the master.

Slave contract: A contract between a master and a slave, after the contract is signed, the slave's life is in the hands of the master, and the slave cannot resist the master's orders.

Equal Contract: Also known as the Soul Contract, after signing, both parties will have a soul connection, no matter how far away they can perceive where the other party is.

The number of Warcraft contracted depends on how large the person's mental power space is, ordinary spirit masters, generally can only contract one Warcraft, and those with stronger spiritual power can contract two, anyway, the stronger the spiritual power, the more Warcraft will be contracted. After the contract, the master can cancel the contract, but the master will have a punishment for a decrease in strength, and the monster only dies.

If someone can only contract one Warcraft, and if they want to change to a high-level Warcraft, then the owner can cancel the contract, and the strength will drop a little, and the Warcraft that has canceled the contract will die.

Xiao Yan and Gu Yihan chose an equal contract, Gu Yihan regarded Xiao Yan as a partner, and of course he would not choose a slave contract.

"Awaken my soul with your blood. I hereby swear that I will protect you forever, live and die together, and sign an equal contract. Would you like to? Xiao Yan recited a spell, and after Gu Yihan and his own hands fused together with a drop of blood, they submerged into the eyebrows of one man and one beast.

"I do." Gu Yihan replied smoothly. After the contract was completed, Gu Yihan felt that there was a trace of connection between Xiao Yan in the depths of his soul, which was a wonderful feeling. Then Gu Yihan felt that the aura at the dantian was overflowing, and he was about to upgrade, you must know that Gu Yihan was only upgraded to the primary level of the Yellow Spirit King yesterday, and in the upgrade level, it was higher than the fifth prince Leng Yifei, Gu Yihan hurriedly sat down and guided the aura to enter the four muscles and eight veins, and then he reached the intermediate level of the Yellow Spirit King, and it was not over until the Huang Ling King was advanced.