Although Ling Yun had just had a breakthrough in his cultivation and his strength had risen sharply, he had not consolidated his cultivation and was not able to control the increase in his strength with ease.

The Mysterious Serpent of Nine Yin's body was shrouded in blood mist, and a pair of cold eyes peeked out, staring straight at Ling Yun, and all of the Qi on her body slowly disappeared.

His spiritual will probed outwards, as if he didn't even exist.

Ling Yun's expression became all the more solemn. At this moment, even though the Mysterious Serpent of Nine Yin did not emit the slightest bit of aura fluctuations, it gave him an extremely dangerous feeling.

Although the Mysterious Serpent of Nine Yin did not move, nor did it make any movements, and did not emit any auras, Ling Yun felt that it had transformed into a high and unreachable mountain.

At this time, the silent Dark Asura Hall in the Qi Sea gently shook, releasing a dark halo. Ling Yun's heart shook, and immediately understood what the Mysterious Serpent of Nine Yin was trying to do.

While he was thinking, the Mysterious Serpent of Nine Yin let out a seeping sneer. Suddenly, a black halo emitted from outside the blood mist and a sharp ghost howl sounded.

A palm-sized palace rushed out from the sky above Tianling, and floated above his head. He slowly said: "Since it's a showdown between Dark Asura Hall, how can we lose Dark Asura Hall?"

As he spoke, his slightly reddened pupils turned dark without being able to see the whites in them. The blood mist enveloping his body dispersed, and a monstrous black aura burst out from within his body. The rolling black aura enveloped him, and the black mist churned.

This black aura was not pure dark system spirit energy, but was condensed using a special method. It gave people a cold and sinister feeling, but it was not as evil as the demon aura.

The Mysterious Serpent of Nine Yin raised both of his hands, releasing a deep black Qi. A desolate and deathly aura spread out, as though it could take away a person's life force.

Not far away, Ling Yun gently raised his palm, and saw that the skin on the back of his hand was cracked with shallow marks, just like an old tree bark.

The Mysterious Serpent of Nine Yin did not say anything, but its black eyes revealed a hint of madness. The black energy that was emitting a deathly aura whizzed out of its body and gathered between its hands, transforming into a huge black ball.

Ling Yun let out a light breath as a dark black light beam rushed out from the Tianling's cover. A strange palace with a completely dark color slowly appeared, surrounded by black Qi, and came from the same source as the black fog surrounding the Mysterious Serpent of Nine Yin's body.

To be honest, with his experience of being counterattacked by the Dark Asura Hall's evil spirit, Ling Yun was extremely fearful of this strange Dark Asura Hall.

Even if the spirit of the tower level had said that the Evil Spirit had been erased, and did not worry anymore, Dark Asura Hall would not do anything against him, how could he be easily relieved?

However, at this time, he had no other choice. The strongest method he had right now was indeed the strange Limitless Death Seal, other than that, the martial skills he had created in his previous life were too high in value. With his current cultivation, he could only barely execute them, and their power was not as strong as this Limitless Death Seal.

Inside the spiritual space, Ling Yun's spiritual body extended out a purple crystal finger, and after hesitating for a while, touched toward a black rune.

That rune was left behind by the will that had passed down the Limitless Death Seal. It had the Limitless Death Seal's cultivation method and spiritual energy circulation route branded into it.

At the same time, Ling Yun felt that if not for this mysterious black rune that looked like a brand, he would never be able to use the Limitless Death Seal.