C46 Netherheart Fire

Zhang Hao sighed in his heart. Then, he came back to his senses and remembered the 16 words that the old voice had said earlier.

"Nine Serenities Heart Flame, Soul Refining Calcination. The heart fire cannot be extinguished, and the soul cannot be extinguished." His eyes suddenly turned to the distant second floor of the grandmist fire tower. The first floor had the Undying Star Flame, and the second floor had the Nine Serenities Heart Flame. He really didn't know just what sort of flame would appear in the next several floors of the grandmist fire tower.

As he thought of this, he no longer hesitated and walked forward. He wanted to see just how strong the Nine Serenities Heart Flame was compared to the Immortal Star Flame.

"Da Da." The moment Zhang Hao's feet stepped onto the ground covered in the rune chasm, he suddenly stood still. His face also quickly became twisted, and his hands were tightly clenched. If one looked carefully, they would see that his body was continuously trembling.

"Swish." Right at this moment, a dark green flame suddenly appeared out of nowhere above his head and quickly spread downwards. In the blink of an eye, it enveloped his entire body. The terrifying high temperature quickly turned his clothes into nothingness.

To Zhang Hao, who had gone through the tempering of his body with the Immortal Star Flame, this sort of temperature was not enough to cause him to show such a painful expression. What made it difficult for him to endure was the situation in his body.

"Swish." As soon as he stepped over the stone tablet and stepped into the runic divide on the second floor of the grandmist fire tower, a dark green flame suddenly rose from his spiritual space. This flame was extremely strange, as it quickly filled his entire spiritual space as soon as it appeared.

Right now, his entire soul space was filled with this strange dark green flame. The terrifying high temperature quickly shrank his spirit source that had originally turned into a piece of land. It turned out to be a land of tens of meters in size.

In just a few breaths, the diameter of the land was reduced to less than a meter. Moreover, this was not the end. Under that terrifying temperature, the land that was formed from soul force was shrinking at a speed that could be seen with the naked eye.

Zhang Hao didn't have the time to think about it. As soon as the dark green flame rose up and appeared in his soul space, an incomparable pain filled his entire mind.

This pain was completely different from when he was training with the Immortal Star Flame, it was a type of pain that came from the depths of his soul. If it was before, when the Immortal Star Flame was training with the body, this pain was called bone-piercing pain, and now, this Nine Serenities Heart Flame gave him a kind of pain that made even his soul tremble.

Although the temperature of the Nine Serenities Heart Flame wasn't that terrifying, the enormous pain it brought to the depths of one's soul made one want to quickly end it all.

"End all this?" Zhang Hao was also shocked by the sudden thought that appeared in his mind. He did not expect that after going through the abnormal body tempering method of the Immortal Star Flame, he was almost forced to death by the Nine Serenities Heart Flame. Thinking of this, he hurriedly calmed himself down and sat down cross-legged.

The pain from the depths of his soul also seemed to have lessened a little as the temperature of the dark-green flame in his spiritual space suddenly soared once again. Waves of the Nine Serenities Heart Flame continued to travel back and forth in his spiritual space, burning the gray gas in the space with a sizzling sound.

Under this kind of temperature, the originally grayish gas quietly began to change. Numerous spiritual energy that were nearly transparent were swiftly formed by the incineration of the 'Nine Serenities Heart Flame'. After which, they randomly drifted within the Spiritual Domain.

The land formed by the soul source became less than a foot long, streams of pure soul force were continuously released from it, immediately forming a soul whirlpool, sucking all of the almost transparent soul energy towards the center of the whirlpool.

Zhang Hao was currently circulating the Chaotic Burning Heaven Technique to resist the intense pain that was spreading from the depths of his soul. At this moment, he suddenly felt a subtle fluctuation coming from the mud ball in his mind.

He quickly sent his mind back into his soul space. When he saw that the spirit source was automatically releasing a suction force to absorb the surrounding transparent energy, he was stunned. Only after a long time did he come to his senses.

However, when his gaze landed on the land that was formed from the source of his soul, the corners of his mouth twitched. He could not care about the pain in his soul anymore and cursed loudly, "This is f * cking hell! A thousand days of firewood is not enough to burn my soul! I worked so hard to enter the earth soul realm, I won't be beaten back to my original form, will I?"

Seeing the small piece of land that had shrunk to a foot long, Zhang Hao suddenly had the urge to go berserk, but he was firm in his mind, and immediately calmed down. After sighing helplessly in his heart, he started to operate his soul power, and a huge suction force suddenly appeared, pulling the surrounding transparent energy, gathering towards that piece of land of souls, and was quickly absorbed by it.

Zhang Hao endured the pain that came from the depths of his soul as he started to circulate his secret soul skill, the Underworld Soul Transformation skill. However, he forgot that he was still using the Chaotic Burning Heaven Technique in his dantian at the same time. It was unknown if he was lucky, or if he got the blessing of the heavens.

If he was a disciple of a cultivation sect, his master would probably be furious because of this, after all, on the road of cultivation, no mistakes were allowed, if he was careless for even a little bit, he would go berserk, and everyone would be very careful in their cultivation, afraid that anything else would happen, but he was also using two techniques at the same time. If he went berserk, then even his corpse wouldn't be left behind, the ignorant was truly fearless.

At this moment, his mind was completely immersed in his soul space. The dark green Nine Serenities Heart Flame continued to rise, grilling the gray gas in the space into transparent energies. These transparent energies were the purest source of soul energy.

In normal times, if he wanted to convert and absorb all of this soul energy, even with the Dark Soul Transformation technique, it would take at least dozens of years to achieve!

But now, this soul energy was effortlessly refined by the Nine Serenities Heart Flame. Although he had to suffer an unimaginable pain that a normal person would not dare to imagine, he still obtained a great lucky chance because of this. After all, if a normal person wanted to absorb such a pure soul energy, without refining for many years, it was simply impossible to form.

Looking at the unending stream of transparent energy that was gathering towards him, Zhang Hao grinned. Without any hesitation, he activated the Underworld Soul Transformation skill. Xiao Yan absorbed all of it.

"Chi chi chi!" In the boundless space, a wisp of dark-green flame quietly rose, burning the skin of a human figure inside until it looked like it had just been boiled. Red patches swiftly appeared on the skin, and it immediately cracked apart with a 'chi' sound.

As soon as the starlight appeared, it swiftly seeped into the depths of his skin. Immediately, he saw that his skin, which was still cracking a moment ago, had started to slowly heal within the short span of a few dozen breaths.

"Chi!" As his skin healed, the Nine Serenities Heart Flame seemed to be provoked. The temperature increased once again, and the terrifying heat instantly burned his skin into pieces. Streams of bright yellow liquid flowed out from the scorching heat, and disappeared without a trace.

As the liquid continuously flowed out, Zhang Hao's body gradually shriveled up. In less than ten minutes, he had turned into an old man who was like a dead tree, with a wrinkled face that slowly climbed up. His face, which was originally in his twenties, had turned into that of a man in his seventies or eighties.

His body rapidly withered under the burning of the dark green flames. In less than ten minutes, his body had dried up and aged. His hands were like dried up tree branches that were full of cracks.

Following the increase in the temperature of the Nine Serenities Heart Flame, the Immortal Star Flame within Zhang Hao's Dantian also suddenly emitted a silver glow. Waves of silver-colored glow was repeatedly emitted from it, and immediately seeped into every part of his body, swiftly repairing his damaged Qi Paths. As the temperature of the Nine Serenities Heart Flame increased, the Immortal Star Flame within Zhang Hao's Dantian suddenly released a silver-colored glow.

As he closed his eyes, he saw that under his wrinkled skin, there was no life, just like dried bark. Streams of dark red blood continuously seeped out from within, wanting to nourish those dried wrinkles, but before they could even seep in, they were instantly vaporized by the terrifying temperature. At this moment, his body slightly trembled, showing the pain he had endured.

The space inside his soul realm was now completely filled with dark-green flames. There was not a single trace of space left for the grey gas that wanted to avoid the flames. The sizzling sounds continuously echoed in this dark green sea of fire.

Zhang Hao's mind didn't have the time to pay attention to all of this, nor did he have the time to pay attention to the excruciating pain in his body. Zhang Hao's mind didn't have the time to pay attention to all of this, even to the extent that he had no time to pay attention to the excruciating pain in his body.

As he continuously urged it on, the land formed by the Spiritual Strength also released numerous huge suction forces. The energy that was originally floating in the Spiritual Domain flowed like floodwaters and gathered toward the land. In the blink of an eye, it was sucked in like a whale.

Following this devouring like swallowing, the land that was agglomerated by the Spiritual Strength also began to grow at a slow speed. Waves after waves of pure Spiritual Energy repeatedly lingered around it, forming a pure, transparent energy vortex.

On the second floor of the grandmist fire tower, Zhang Hao quietly sat on the ground. For the entire day, the Nine Serenities Heart Flame that surrounded him had unknowingly become much fainter, and his dried up body was once again brimming with vitality.

"Pfft!" It was at this moment that the Nine Serenities Heart Flame finally extinguished and his eyes that had been tightly shut for the entire day suddenly opened. A dark green flame flashed deep within his pupils …