Xu Dong's eyes widened as he looked at the black rune, and he was overjoyed for a while, because he happened to study this kind of rune when he was a Confucian in his previous life.

He recited the black rune again, and the Ding Demon was lifted, and he used the sea of knowledge to smear his own logo on the Shending, and this Shending became his private property.

"The sixth stage of yin and yang fire!"

"The sixth stage of yin and yang fire!"

"The sixth stage of yin and yang fire!"

Xu Dong recited it three times in a row, and this divine tripod began to respond to his instructions, and quickly mobilized the spirit elements needed to practice yin and yang fire.

He injected divine thoughts into the jade ring on the ring finger of his left hand, and the jade ring opened like a book, automatically turning to the "sixth stage of yin and yang fire".

Xu Dong opened the "Heavenly Eye" of the Purple Mansion, quickly browsed the words on the jade ring, and began to practice the sixth paragraph of Yin Yang Fire.

Originally, he had only practiced to the second stage of Yin Yang Fire, but with this divine ding, he could skip the third, fourth, and fifth stages and directly practice the sixth stage.

The spiritual power in Xu Dong's body has reached the ninth level of the mortal realm, and the sharp increase in the number of spiritual power is also the reason why he wants to transcend the level of cultivation.

Whatever, try the sixth stage first, and if there are any signs of going crazy, brake quickly.

The sixth stage of practicing Yin Yang Fire, like the previous ranks, is divided into five stages: cultivation, trial, fire resistance, smelting, and synthesis, but the specific methods are different.

Because the number of spiritual power is sufficient, the "Peiji" stage can be directly surpassed.

Now let's start practicing the second stage: Trials.

"Trial" is to put the three hundred kinds of medicinal stones needed to practice yin and yang fire into the body and refine them into essence.

"Medicine!"

Xu Dong was not worried about the lack of elixir, because the Fire Condensing Pill he and Su Hong had not used up last time, and there were still a large number of treasures stored in the treasure bag.

It is also because Zhihaiwen is strong enough that any storage in the treasure bag can be directly transported in place with his own thoughts.

Xu Dong can observe the body with three spells, one is the inner vision, the second is the divine sense, and the third is the sea of knowledge, which is the "heavenly eye" of the Purple Mansion.

These three spells are ranked as small, medium, and large, with the latter having more mana than the previous one, and the internal friction cost is also greater.

Therefore, a practitioner who is good at management will choose different exercises according to the different circumstances to save internal friction as much as possible.

Now, Xu Dong only needs to use internal vision to see the situation in his body.

He saw that pills were poured into his body, and as soon as the required amount was reached, the mechanism that sent the pills was automatically turned off, and the process was very intuitive.

The Fire Condensing Pill was quickly refined in the body, and the strong medicinal properties were working, devouring the thick fire attribute spirit element in the Ding Furnace, and quickly condensed into essence seeds in the body.

The essence seed is conceived instantaneously, and it continuously produces fire attribute spirit elements.

After the fire attribute spirit element was full, it was devoured by the large and small blood vessels around Xu Dong's body, and then it was full and devoured again......

"Boom!"

"Boom!"

The temperature in the furnace continues to rise, and the fire power is increasing section by section, and the color of the flame will be red, blue, and green and yellow.

Next up is the third stage: fire resistance.

"Resisting fire" is to control the fire practiced in the body, so that this fire can be big if it wants to be big, small if it wants to be small, and whatever shape it wants.

The fire that Xu Dong controls now is just a single yang fire because it has not yet fused with the yin fire in Su Qing's body.

After being able to control the yang fire at will, the next step is "smelting".

"Metallurgy", according to the normal steps, should be smelted separately by men and women, with men using yang fire and women using yin fire.

However, cultivating in such a divine tripod where spirit elements are piled up, the steps can be simplified, and the time required will be greatly shortened.

Xu Dong fed Su Qing the Condensing Fire Pill, and the Condensing Fire Pill was refined in Su Qing's body, and it was also constantly devouring the spirit yuan in the Ding Furnace, condensing into essence seeds in Su Qing's body.

The essence seed generated a fire attribute spirit element again, and over and over again, the spirit element in Su Qing's body was full, and it was swallowed up by the blood vessels around her body, and then it was full and devoured again......

After "metallurgy", there is the final stage, "synthesis".

The procedure of "synthesis" is very straightforward, that is, through the merger, the yin fire in Su Qing's body and the yang fire in Xu Dong's body merge.

The fire that is produced after the confluence of yin and yang is the yin and yang fire, which is the spirit of fire.

In the Shending where the spirit element is thick, Xu Dong does not need to have a substantial intersection with Su Qing, and it can be synthesized through the flow of the spirit element.

When all this was completed, the flames in the Ding Furnace gradually went out, and Xu Dong and Su Qing slowly rose up again and returned to the pool.

Su Qing lay on Xu Dong's body, soft as boneless, and the long-term smelting in the Shending just now made her faint from mental and physical failure.

Xu Dong was very distressed when he saw Su Qing's appearance, he printed his lips on Su Qing's cherry mouth, and sucked the turbidity in her body again and again, and it took Su Qing a long time before he woke up leisurely.

Her apricot eyes opened slightly, and she looked at Xu Dong's face intently, as if she wanted to pierce Xu Dong's heart.

"What did you do to me? Do you want my body? If you want my body, you have to want me forever, you can't leave me alone!"

Xu Dong wanted to explain clearly, saying that he didn't take the opportunity to possess her, but since he was so hugging her, he couldn't explain it.

"I won't leave you, you see how much I love you, how can I be willing to leave you?"

Obviously, Su Qing was very satisfied with Xu Dong's answer, and took the initiative to give Xu Dong a hot kiss, sticking her tongue into her mouth and stirring gently.

The male in Xu Dong's body had already been aroused, and he hugged Su Qing to the stone bed, and at this time, Su Qing was also panting, and his face was as bright as a peach blossom.

The water brought from the pool flowed down the stone bed, and then dripped to the ground little by little, and the water was mixed with a little red.

Even at this time, Su Qing showed her cold beauty demeanor, looking at Xu Dong with apricot eyes half-open, silently enduring the male hurricane.

When the roar passed, Su Qing hugged Xu **ran and cried.

"Do you know that I have a hard time? I have been sealed in the cold palace alone for five years, and in these five years, the only living person I have seen is Zhao Lun's old dog. ”

Xu Dong didn't know why Su Qing hated Zhao Lun so much, and he also wanted to know more about Zhao Lun through Su Qing.

"Zhao Lun's old dog poisoned his uncle, and he wanted to bury me with those women, but after he detected my special physique, he left me alone. ”

"The old dog doesn't know what kind of exercises he is practicing, and he has to pick yin to supplement yang to practice, and none of the women he has picked yin have survived, and after he killed them with poison pills, he refined the corpse into bone glue. ”

"Huh?" Xu Dong cried out in surprise, "How do you know?"

"Every time the old dog came to harass me, he would suck the bone glue in front of me, saying that the bone glue had a miraculous effect on his practice. ”

The image of Zhao Lun appeared in front of Xu Dong's eyes, no matter what, he couldn't combine the Zhao Lun in Su Qing's eyes with the Zhao Lun he had seen with his own eyes.

With a clear face, strange facial features, a long beard, and a kind face, how can such a decent emperor be a devil who eats people and does not spit out bones?