The tone of the synthetic monster when he speaks, neither male nor female, neither human nor demon, it sounds, it stimulates the eardrum to be extremely painful, and the nerves are violently disturbed, which makes people can't help but get goosebumps!

Sun Tianshi didn't expect that such an accident would happen, and for a while, Sun Tianshi had no idea, his face changed greatly, and he stood on the spot, at a loss.

The demon soul that merged into one, his face was extremely terrifying, two long fangs were propped outward, a black tongue was spitting outward, his cloak was scattered, and he pounced fiercely on Sun Tianshi, saying that he wanted to suck the essence blood of your old Taoist priest dry!

After all, Sun Tianshi is an immortal who has cultivated to the early stage of the Yudan, where is it light that the essence blood was sucked by a demon soul that was combined into one, and the demon soul in front of him was far inferior to the female demon who had sucked his essence blood at the beginning.

Although Sun Tianshi was at a loss for a moment at this moment, his main soul was still dominating a qiē in his body.

The synthetic demon didn't seem to take Sun Tianshi in his eyes at all, and without a trace of hesitation, he instantly pounced on Sun Tianshi's body, opened his bloody mouth, and sucked it suddenly.

However, due to the lack of strength of the synthetic demon, Sun Tianshi relied on the immortal power to control it, and the essence blood was not sucked away by the synthetic demon, but this mouthful sucked away a large wisp of the old immortal qi on Sun Tianshi's body.

And the immortal qi and the demon qi are mutually restrained, this large wisp of immortal qi, into the body of the synthetic demon, immediately produces a rebellious effect, just like a person inhales a large mouthful of gasoline, and the stomach will undoubtedly turn over the river and the sea!

I saw the Synthetic Demon roll on the spot, and a terrifying demon cry came out of its fanged mouth.

At this time, Sun Tianshi came to his senses, he immediately counterattacked, and saw that the synthetic demon was suppressed by his immortal power, so he shook the red dust in his hand, wanting to destroy the synthetic demon immediately.

However, another unexpected happened!

The large wisp of immortal qi on Sun Tianshi's body sucked by the Synthetic Demon interacted with the two energies of resentful soul and demon qi, producing a strange substance that could not be explained by modern physics.

This kind of substance is neither immortal energy, nor demonic energy, nor resentment, but a third kind of energy.

This energy, with a snort, rushed out of the mouth of the Synthesis Demon, glowing with a black and red hue, looking like a large firework.

This beam of energy sprayed at Sun Tianshi's face at a lightning speed!

Sun Tianshi immediately had an indescribable feeling of pain, both like the pain of being burned by fire, and like a pain of being dissolved by a chemical in his muscles.

In short, it is even more painful than splashing aqua regia on the face!

In the midst of the pain, Sun Tianshi immediately couldn't open his eyes.

Then, his hearing was gone!

Then, I couldn't make a sound out of my mouth!

Yuwan, Old Doctor Wang, Xiuzhi and others next to them had been watching the whole process of Sun Tianshi's destruction of the resentful soul with their absolute trust in Sun Tianshi just now, that is, when everyone saw the synthetic demon pounce on Sun Tianshi, and when Sun Tianshi stood still, everyone had no reason to think that Sun Tianshi would fail, thinking that it was a manifestation of Sun Tianshi's safe practice.

And when everyone saw the synthetic demon rolling on the spot, and Sun Tianshi struggled to pounce on the synthetic demon, everyone thought that the synthetic demon was about to be wiped out.

Who would have thought that next, the synthetic demon turned out to be like a flamethrower, and when it opened its mouth, it was a beam of flames that were red in black!

And after Sun Tianshi was hit by this flame, he covered his face with his hands, and it was impossible to continue to attack the Synthesis Demon, on the contrary, the Synthesis Demon fought back!

That demon, with its teeth and claws, let out a thrilling roar one after another, completely as if it was about to tear Sun Tianshi apart.

Yuwan first thought it was bad!

Then, Dr. Wang's eyes widened in surprise!

And Xiuzhi screamed silently!

At the critical moment, Yuwan naturally took on the obligation to rescue Sun Tianshi.

Yu Wan asked herself, the cultivation of a young immortal, a sixteen-year-old girl, her strength is far inferior to that of the golden boy, and even Sun Tianshi can't fight the synthetic demon, can she defeat it!

However, Yuwan is a very smart little girl.

If you can't fight with manpower, you will fight with magic weapons!

She remembered her treasure, the Yin Yang Ding.

That incomparably powerful Yin Yang Ding can refine a high-level demon in the late stage of the Jiedan, can't it refine a synthetic demon?

Yuwan was full of confidence.

Yuwan quickly invited out the Yin Yang Ding, recited the formula, and the Yin Yang Ding quickly became larger, soared into the air, and hung above the height of the house, in an inverted state, and the Dingkou was aimed at the monster synthesis demon.

Yu Wan continued to chant and manipulate the spell, and sure enough, it took the master and uncle a full 60 years, that is, a Jiazi time, to refine the Yin Yang Ding with a hundred demon soul sacrifices, and the synthetic demon was firmly fixed there in an instant!

Yin Yang Ding, now operated by Yu Wan, a level 1 + little immortal, if it is operated by a twelve-level immortal like the golden boy and Yu Wan's master, refining an ordinary monster like the synthetic demon in front of you, there is no need to be so troublesome at all, you only need to operate the Yin Yang Ding in a pocket state in your hand, and with a slight shake of the monster, the monster will enter the tripod and be refined.

At present, Yuwan, including the golden boy, only knows all the functions of the Yin Yang Ding.

The biggest function of Yin Yang Ding is to turn evil into good, monsters, ghosts, evil spirits, etc., all evil things can be refined into positive energy!

And after turning evil into good, the most basic harvest is that you can get a high-grade elixir. This is a bit similar to using poisons such as scorpions to make good Chinese medicine in real life.

This most basic function of the Yin Yang Ding, the master has already told the golden boy and Yuwan, so they know about it, and last time, it was based on this knowledge that they refined a female demon class, and then successfully used the demon avoidance spirit obtained by refining the demon class.

However, for the other three high-level functions of the Yin-Yang Ding, the master did not tell the golden boy and Yuwan, because the master believed that the mana of the two was far from being reached, and it was an extremely dangerous thing to develop the high-level functions of the Yin-Yang Ding if the mana could not be reached!

The most dangerous thing is that when the advanced functions of the Yin Yang Ding are developed, the one hundred high-level demon souls will be in a fully activated state, if the operator's immortal power cannot be reached, the one hundred high-level demon souls that are activated will fight back against the operator together, and suck the operator into the Ding to refine it!

Therefore, the master did not sue the golden boy and Yuwan too early, so as not to cause trouble.

There are many high-level secrets in the fairy world, and the master deliberately does not tell the golden boy and Yu Wan, this teacher who is more than 300 years old, is good at using heuristic teaching, and usually has many cultivation subjects, all of which are for Jin Tong and Yu Wan to explore and understand in practice.