Whoosh!

A gust of wind appeared out of nowhere in this underground space. The dense Baleful Yin Force churned and churned, revealing a huge skeleton in the middle with empty eyes. It looked up at the sky and a vicious and violent aura was emitted from the skeleton!

On top of the formation, there were eight black flags. On each side of the formation, there was a giant ghost, and from the space around it, Baleful Yin Force constantly flowed into the formation, before it transformed into a rotating tunnel above their heads.

Surprisingly, there were countless small holes in the rotating tunnel. An unknown light flashed as it dispersed the Baleful Yin Force into many small holes.

Whoosh!

A black light spot flowed downwards and charged into the tunnel. It immediately became larger and a figure immediately walked out. Ye Zichen looked at the skeleton in shock.

"So that's how it is! "No wonder this place is filled with Baleful Yin Force. So the skeleton of Patriarch Skywhale was used as the formation's eye to gather Baleful Yin Force from the battlefield."

Looking at the skeleton that looked like a gigantic whale looking up into the sky, Fang Ling had a flash of understanding in his heart.

At that time, Patriarch Skywhale could also be said to be a half-step Primordial Spirit, the worthy king of the clan of whales! Even if he died, the flesh and bones of his entire body would be a rare cultivation treasure. If his flesh and blood were obtained by a cultivator, it could be refined into a medicinal pill comparable to a Golden Yuan Pill. "As for that skeleton, it could be refined into a medium-grade treasure. If it was refined by a supreme elder, it would be able to reach the level of a top-grade treasure!

However, Venerable Lord Hanshan had actually not taken away such a treasure all those years ago. Instead, he had used Patriarch Skywhale's corpse to set up this supreme formation and continuously gathered Baleful Yin Force, turning it into a cultivation treasure for low level cultivators!

As this thought flashed through his mind, Fang Ling did not hesitate at all. Although Venerable Lord Hanshan had arranged this for the sake of the Southwest Region Alliance, Fang Ling would not give up just because he admired them. If he were to absorb such dense Baleful Yin Force, Fang Ling would definitely step into the middle of the second level!

Fang Ling would naturally not let such a benefit go.

"Demon God Rising the Heavens!"

With just a thought, Fang Ling floated down. He circulated the Fiendgod Sky Splitting Charm, creating a small hole in the array as he brought the True Essence Cauldron into the core of the array. He sat down cross-legged, and in the next moment, he began circulating the Fiendgod Heaven Opening Art with all his might.

Boom!

The entire underground space became quiet for a moment, and then waves of evil Yin Qi rushed towards Fang Ling like a tsunami. They poured into Fang Ling's body, and immediately after, a layer of mysterious patterns appeared on Fang Ling's skin, flashing as it absorbed the evil Yin energy.

Along with the absorption of Baleful Yin Force, the mysterious layer of markings slowly increased. At the same time, deep inside, the Baleful Yin Force within each and every member of the body underwent an inexplicable transformation, turning into the aura of a god or devil opening the sky. It circulated within every molecule of the body, and also left behind simple markings.

This was the process of cultivating the Fiendgod Sky Opening Art and slowly transforming one's body into a Fiendgod body.

And at the same time, as Fang Ling continued to cultivate, above this underground space, in the countless stone rooms, the practitioners all had doubtful expressions. At the same time, as Fang Ling continued to cultivate, above this underground space, in the countless stone rooms, the practitioners all had doubtful expressions.

"Elder, what's going on?" How could the Yin Energy in this place suddenly become so thin? " A young cultivator of the clan, who had just finished adjusting his state and was about to start cultivating, suddenly felt the Baleful Yin Force become thinner. He could not help but ask the clan elder who was protecting him.

"Yes." The Patriarch heard this and felt it carefully. He also frowned. This is something that I don't quite understand. Just wait here and I'll go ask the deacon here. "

When this elder walked out of the stone room, there were already many people who had found the deacon for this place. In the Shadow Devil Mountain, although the City Lord's Mansion only sent one deacon, this person was the most powerful person in the City Lord's Mansion other than Li Ling. He was Li Ling's right-hand man and also Li Ling's younger brother, Li Guang.

Hearing everyone's words, Li Guang's face turned serious, so many stone rooms had problems, it must be the underground core. Li Guang knew the reason why the Demonic Yin Mountain existed. He did not dare to hesitate and quickly sent a message to Li Ling, and then went straight to the secret passageway that led to the core area.

"Hmm? You discovered it so quickly? "

Fang Ling, who was in the middle of his cultivation, had a change in expression. When he felt movement above him, he quickly entered the True Essence Cauldron to conceal himself.

"Hehe!" My guess is right! If I can refine such a treasure into a treasure, then even if I don't break through to the Aurous Core stage, my strength will greatly increase. When that time comes, Li Ling will not be my match! "

Just as Fang Ling hid his figure, a black cloaked figure appeared in the air. His eyes shone as he stared at the huge skeleton below and laughed maniacally. This person was the evil Left Lieutenant!

Without the slightest hesitation, the person raised his right hand. An evil and dense mana turned into a sharp sword that struck at the formation.

"Clang!"

The spell formation was intact, and it flickered with brilliant light as it deflected the sharp sword. When he saw this, Vice Ambassador Zuo's face turned slightly to the side, and then he sneered again: "Heh! A mere formation wants to see how I will break through you, Sting of the Dark Night! "

With a cold shout, a three inch long poisonous spike that was filled with pitch-black thorns appeared in front of Vice Envoy Zuo. With a single glance, the poison needle flew towards the light barrier and struck it viciously!

Looking at the might undulations emitted by the spikes in the night sky, Fang Ling's expression turned serious. Such power was almost comparable to the power of three thousand Dragon Horses. Moreover, this was just a casual attack from this person.

The Dark Night's Spike was a divine technique used by Left Custodian Zuo. This person cultivated a total of four divine abilities in the Dao Embryo Stage: the Dark Night's Spike, the Yin Fiend Slash, the Hand of the Evil God, and the Eternal Night's Death. The Spike of the Dark Night was an attack that broke the spell formation, a sneak attack. The poison on the thorn would cause a great loss to any Aurous Core stage cultivator, and would have corrosive effects!

Out of the four sacred arts, only the Baleful Yin Slash was not completely cultivated. That was why Left Envoys came to the Demonic Yin Mountain in an attempt to perfect it.

"You dare!" the Profound Origin Shield! "

Just as the Thorn of the Dark Night was about to attack the light barrier, an explosive shout suddenly sounded out from a part of the space. Immediately, a figure shot over and a bright light circulated in his hand as his mana transformed into an enormous shield that shot out between the light barrier and the poisonous thorn.

"Chi!"

The corrosive sound came out, the Profound Origin Shield created a large hole, but in that short period of time, Li Guang had already arrived in front of him, he waved the heavenly halberd in his hand, and struck the poisonous thorn, sending it flying.

"Evil cultivators!"

Li Guang looked at the black cloak in front of him. He felt that there was an evil and perfect Qi around him, and spoke with a serious expression.