Somewhere, a ray of light shone on the ground, and the rest was covered in darkness, and it is not known how big it was.

"Returning to the No. 1 herringbone number, the No. 19 seed has already taken away the basic chapter of the Fire Emperor's Great Immortal Technique. "A figure was humbly prostrate on the ground, and only the high cocked ass was seen.

"He didn't notice anything unusual, did he?" there was a figure hovering above, all hidden in the darkness, except for a pair of eyes that occasionally glowed.

"Back to herringbone No. 1, no. ”

"Well, you've done a good job in this matter, go down and get the reward, but keep your mouth tight, otherwise you'll ......"

The body prostrate on the ground trembled obviously, and it was a little unfavorable to speak, "Don't worry, my lord, my subordinates know." He slowly got up and humbly exited the room.

"No. 19? The support for you is unusually large, but I don't know if you can grow up, can you grow into a towering tree, covering the sky? I hope it doesn't become a waste chess. The room reverberated with a vague voice.

......

Looking at the little green wood in his hand, Dongfang Ku was very excited, he didn't expect to encounter such a good thing casually, you must know that this kind of little immortal art in the Heavenly Pavilion can also contribute more than 100.

"Cultivating the little immortal art here, even if it is an ordinary aura flame, my strength will increase a little. Hehe......" Dongfang muttered to himself for a while, and quickly immersed himself in cultivation.

The Kosenjutsu recorded in Koaoki is called the Fire Transformation Technique, which uses a specific mantra to condense flames into weapons such as knives, guns, swords, and halberds to increase attack power.

This kind of little fairy art is difficult in the control of the flame, if the control is strong enough, then this little fairy art is relatively simple to learn, if the control of the flame is not enough, then it needs to grind for time, maybe three months, maybe half a year, I can't say.

It just so happened that Dongfang Ku's ability to control flames was quite acceptable, and in about half a month, he would be able to condense flames into various weapons.

Looking at the flames that were constantly changing in mid-air, Dongfang Ku was very satisfied, "It's really worth it to be able to buy this kind of little immortal technique for 80 lower-grade spirit stones, oh, by the way, it also comes with a black stone?

Dongfang Ku asked the stall owner to give him a small black stone, in fact, it was just a greedy and cheap character, it didn't matter if the stall owner gave it or not, his main goal was the small green wood, but when he saw the stall owner give it to him so happily, he realized that this black stone was not a valuable thing, so he didn't take it to heart, and after returning to the residence, he threw it away at will, and devoted himself to the fire system transformation technique.

"Hey? Dongfang Ku found the inconspicuous black stone in the corner of the bed.

The black stone is smooth and delicate to the touch, cold and cold, and at first glance it looks no different from ordinary stones.

Dongfang Ku tried to probe the spiritual sense into it, but did not encounter any obstacles, and soon the spiritual sense returned, but it made Dongfang Ku stunned, because the spiritual sense told Dongfang Ku that this was just a very ordinary stone.

"Hmm, it's impossible?" Dongfang didn't give up, and swept back and forth with his spiritual sense several times, "No, how can an ordinary stone appear on a stall? Test other people's eyesight? This is too?"

Dongfang Ku didn't believe that this was an ordinary stone, if there was any garbage in it, Dongfang Ku wouldn't be surprised, otherwise the stall owner wouldn't have given it to himself so easily. But now it is found that the stone is just an ordinary stone, how can this make Dongfang Ku believe it?

"Boom!"

Dongfang Ku summoned a flame and scorched the black stone fiercely, although it was just an ordinary aura flame, but it was also very terrifying to release it with the cultivation of the secret realm of Dongfang Ku Refining Body.

Gradually, Dongfang Ku's brows relaxed, "Hehe, I'll just say, how can it be just an ordinary stone?"

It turned out that this black stone had no reaction under the burning flames, and it was still the same black and non-slippery appearance, if it was an ordinary stone, it would have been turned into ashes under the flames.

"It's just that, why can't the spiritual sense detect what's inside?" Dongfang Ku's current knowledge of cultivating immortals couldn't give him an answer.

Since his spiritual sense was no longer effective, Dongfang worked hard and burned the black stone.

Time passed quietly, three hours passed, during which Dongfang worked hard to compress the aura, and the power of the flame continued to increase, but the black stone just didn't react.

Just when Dongfang was about to lose patience, the black stone changed.

The originally smooth surface began to wrinkle, and at the same time, a trace of black gas was released, "Okay, it's really greasy." "Dongfang is in a good mood, cheering up and urging the flames.

After another hour or so, the stone has changed greatly, from the original black to the current white as jade.

"Good guy, if you don't react again, I'll have to replenish the aura in my body. The jade-like stone in Mosuo's hand, Dongfang couldn't wait to release his spiritual sense.

Soon, Dongfang bitterness turned from joy to shock, he couldn't believe that he could have such good luck.

There is an unknown immortal art preserved in the jade-like stone, the content is not long, only two or three hundred words, but the description in it makes Dongfang Ku dumbfounded.