Moreover, Duan Fierce looked at Chu Chen's resolute look, it seemed that if he was not sent to the twelfth layer, it was estimated that this shrewd little guy would definitely not be willing to pay.

Therefore, Duan Fierce frowned, carefully recalled and deduced the detailed information about the twelfth layer in his mind, and finally gritted his teeth and nodded.

"Okay, the twelfth layer is the twelfth layer! This is really a big loss, not only will I take you to the twelfth layer, but I will also protect you well when you are cultivating...... By the way, how long does it take you to practice that set of exercises?"

"Hmm...... It can be as short as 10 days and as long as more than a month. ”

Chu Chen thought for a moment and then gave an answer, he had already memorized the operation method and key points of the Nine Yang Burning Heaven Seal, and what he lacked now was to use the purest fire spiritual power to boil and be familiar.

Judging from the speed at which his "Violent Spirit Technique" devoured the aura, he should soon be able to absorb enough pure flame essence to perfect the Nine Yang Burning Heaven Seal.

"Well, then let's go!" After hearing Chu Chen's words, Duan Yan stopped talking nonsense, and with a wave of his robe sleeves, he took the lead in walking forward, and Chu Chen and Zhou Mei behind him also rode a thin black donkey.

With Duan Murder's shot, everyone's itinerary became easier, although this old man has no lower limit for black money, but his own strength is really not to say, all kinds of fierce beasts in the Lingquan Realm and Lingxi Realm encountered along the way are all directly killed with a knife without dragging the mud and water at all.

Occasionally, he met some super beast kings that were comparable to the "Volcanic Giants", and Duan Fierce also led everyone to evacuate decisively and fly back.

After recovering from his injuries, he ran at full speed much faster than Wangcai, and after three days and two nights, everyone finally came to the twelfth layer of the small world of Yankeng.

The twelfth-layer small world of the Yankeng Secret Realm can be regarded as really touching the periphery of this "Underground Flame Core".

The scope of this small world is not large, the area is only less than one-tenth of the small world of the ninth layer, and the flat rocky ground is crisscrossed with large and small magma rivers, which are scattered throughout the small world.

If you look at it from the outside, the entire small world from the twelfth to the sixteenth layer looks like a huge furnace, and the ninth layer of the small world is the top of this furnace.

The further down it gets, the closer it gets, the hotter it gets.

Looking down from the edge of the pit, you can directly see that there is a huge round of "scorching sun" in the depths of the earth, constantly emitting a ** intense fire and heat to the surroundings, this round of scorching sun is the legendary "fire core", and it is also the bottom of this invisible "furnace".

As soon as he came here, Chu Chen's eyes lit up, and the pure flame essence in the air was extremely abundant.

Even if you just take a light breath, you can feel a blazing burning sensation filling your mouth and nose, and there is no doubt that this environment is the best place to cultivate the "Nine Yang Burning Heaven Seal".

Therefore, Chu Chen didn't waste any time, and after finding a huge protruding rock, he directly sat down cross-legged and began to cultivate hard.

Seeing this scene, Duan Yan sighed slightly, found a small hill and sat up cross-legged: "Tsk...... It's not easy to make money......"

Zhou Mei next to her glanced here, the corners of her mouth glanced slightly, and her figure disappeared from the void.

In ancient myths and legends, the body of the Ancient Heavenly Emperor Emperor Emperor Jun is a three-legged golden black bird divine beast, he was born from the sun, and he inherently contains the incomparably pure sun true fire essence, and the Nine Yang Burning Sky Seal is the strongest combat skill created by Emperor Jun with all his life's painstaking efforts.

Legend has it that this set of exercises can summon nine true scorching suns when urged to the extreme, and a round of scorching sun can burn a heavy sky, and the nine suns can even directly destroy the nine heavenly immortal realms!

Therefore, if you want to cultivate this set of ancient and peerless super combat skills, the first thing is to have a large amount of pure fire spiritual power in your body, and the first step in cultivating the Nine Yang Burning Heaven Seal is to attract pure pure flame essence qi into your body and transform all the spiritual springs in your body into "Yan Springs" with fire attributes, so as to cultivate into "Pure Flame Spirit Body".

The "spiritual spring" cultivated by the monk itself has no attributes, it is only the purest source of spiritual power. In the later stage of the Lingquan realm, you need to absorb the essence of the five elements of gold, wood, water, fire, and earth from heaven and earth, which is pure, to transform the spiritual spring in your body into the corresponding attributes, so as to greatly improve your strength.

The process of transforming the attributes of the spiritual spring is very energy-consuming and time-consuming, which requires the effort of the water mill to refine it from its own spiritual spring origin little by little.

Moreover, the amount of five elements of spiritual power required is also extremely terrifying, if it is in the outside world, it usually takes the monk several months, or even years, to slowly achieve this goal.

And this was also the main reason why Chu Chen had to enter the twelfth-layer small world of the Yan Pit, because only here could he have the purest and most massive amount of pure Yan Essence in the world, which could meet his need for fire attribute essence.

Chu Chen had his own plans for the path of cultivation, the Origin Spirit Spring in his body, the Purple Void Flame Ice Spring, was the only dual-attribute super-rank spring in the Mythological Era, and it contained the most primordial Yin and Yang power between heaven and earth.

And the Nine Yang Burning Heaven Seal Technique obtained by chance was a supreme and powerful fire-based Pure Yang Combat Technique, so he planned to absorb enough Pure Flame Essence to completely activate the "Pure Yang Power" in his Purple Void Flame Ice Spring to the limit, so as to transform it into a "Pure Flame Spirit Body" in order to facilitate the cultivation of the Nine Yang Burning Heaven Seal.

After he had thoroughly mastered the essence of the ancient combat technique of the Nine Yang Burning Sky Seal, he would go to an extremely cold and extremely yin place to activate the "Pure Yin Power" in the Purple Void Flame Ice Spring, so that all the yin and yang power in the Purple Void Flame Ice Spring would be stimulated to the strongest state, and when the Yin and Yang merged, a shocking terrifying power would definitely erupt!

The red light was thick, and the fiery flame aura rose up.

As soon as Chu Chen was lucky, the pure flame essence that was abundant to the extreme in all directions suddenly surged into his body like a hundred rivers and seas.

The vast spiritual power even transformed into a layer of dazzling red light and enveloped his body, as if it was on fire, and began to burn.

This scene lasted for five days.

After five days and five nights, Chu Chen's figure shook slightly, and slowly opened his eyes. At that moment, a dazzling red light erupted from his eyes, and it spewed out several feet away. The corners of his mouth slowly hooked up a trace of arc, this trip to the Yankeng world was really worth it.