The deep crater seemed bottomless. Qingfeng Li took the lead and jumped down while Tu Ba, Tiandie Mu followed him. Without hesitation, Black Puppy and Sky-Devouring Snake jumped after them.

The s.p.a.ce below the Skeleton Mountain was so vast and deep they couldn't see the end of it.

It was filled with grey death energy. Qingfeng Li activated the Golden Flames in his body and drove all the death energy out before it could touch them.

Wu wu…

From below came the Wu sounds which sounded like humans or undead beasts and they were so creepy they gave them gooseb.u.mps.

Qingfeng Li channeled his clairvoyance ability with his right eye and shone the golden light beam downward, finding those sounds came from souls.

Floating in the s.p.a.ce below, the souls of self-cultivators who had died one million years ago and their resentment acc.u.mulated here in great amounts.

Qingfeng Li said calmly, "You have been here for a long time. I'd better send you to the process of reincarnation."

He threw the flames forward onto the souls.

The moment the flames touched the souls, the souls let out shrill screams before burning into dust.

Standing behind Qingfeng Li, Tu Ba and Tiandie Mu didn't have to worry about the attacks from the resentful souls. Besides, their attacks were useless against these resentful souls since they could only be killed by Qingfeng Li's Golden Flames and nine-colored thunders.

Besides these resentful souls, there hidden in the lower s.p.a.ce of the white bone cave other evil ghosts but Qingfeng Li killed them all with ease.

Now that their master Yin-Yang Sky Roc had been killed by Qingfeng Li, its subordinated were absolutely no matches for him.

They encountered no dangers on their way to the bottom.

Qingfeng Li estimated the bottom was at least hundreds of thousands of meters from the ground. If it was on the Earth, one would travel to the other end of the planet with this distance, but Yin-Yang Planet was at least thousands of times bigger than the Earth.

Di… di… di…

From somewhere ahead of them came dripping sounds as if something was dripping.

Qingfeng Li smelled a powerful h.e.l.l Yin presence mingled with a faint evil presence.

Qingfeng Li stepped forward on the creepy white bones which may have existed here longer than Yin-Yang Sky Roc. After all, the planet had existed long before Yin-Yang Sky Roc came here.

Qingfeng Li studied the white bones and saw faint radiance on some of the bones which should be immortal bones.

Qingfeng Li was astonished, wondering if there were human immortals or other immortal beasts besides Yin-Yang Sky Roc he had just killed.

Black Puppy had also noticed the difference. It walked to the side of Qingfeng Li and said in a low voice, "These bones are extraordinary, and they have been here for at least five million years, much longer than the age of Yin-Yang Sky Roc. They had been extremely powerful figures before they died."

Sky-Devouring Snake put in from one side, "Look at that bone! The immortal waves it emits hasn't died after millions of years and the bone hasn't yet decomposed into dust. It must have belonged to some great figure of the immortal realm."

Qingfeng Li looked toward the spot Sky-Devouring Snake pointed at and sure enough, there was a skeleton.

Different from other white bones, this skeleton was intact; it sat cross-legged looking up at the sky as if it could see through the past and the future of the vast universe.

Suddenly, Qingfeng Li's expression changed since he saw a line of small characters below the immortal skeleton.

These characters were so tiny they were unnoticeable if he hadn't looked carefully.

Qingfeng Li focused his attention and distinguished the words, "I'm North Profound Immortal from the Universe Immortal Land. I was severely wounded by a sneaky attack from an enemy and fell to the Universe's Saint Realm with my broken soul and body. Yin-Yang Planet was one of the planets in the Immortal Land but now it has fallen into the Saint Realm.

A great secret is hidden in this planet. When I was an unrivalled immortal, I only occupied the middle part of the planet while in the northern and southern parts of the planet each existed one unrivalled figure and I don't know if they are dead or not. They have been in deep sleep buried in the burial place."

After reading the short autobiography of North Profound Immortal, Qingfeng Li looked stunned.

Tu Ba, Tiandie Mu also looked astonished and incredulous at the sight of the characters.

As half-immortals, they hadn't even been to the Immortal Land and had seen only a handful of immortals. Now sitting before them was the skeleton of North Profound Immortal who had been so powerful that he had almost broken through to the realm of immortal king.

Of course, besides the ident.i.ty of North Profound Immortal, they were more astonished at the content of his words.

Yin-Yang Planet had been in the Immortal Land in the Desolation Era of the Universe and for some unknown reason, it fell to the Universe Saint Realm.

It must be noted that these two realms were separated by s.p.a.ce barriers which were extremely hard to break. Except that the Immortal Land opened its gates, such a huge planet dropped from above would have caused great upheavals.

Besides, according to North Profound Immortal, there hid a huge secret in Yin-Yang Planet and in the southern and northern parts concealed two huge figures whom even North Profound Immortal regarded as powerful ultimate masters.

Qingfeng Li made three bows to North Profound Immortal to show his respect and appreciation to the senior who had given him important information.

After all, he would travel to the northern and southern parts of Yin-Yang Plant where the Yin-Yang Vulture feathers and Yin-Yang Immortal Crystals located. He must get them to build Yin-Yang Immortal Array Formation.

Otherwise, the ancient monsters and living fossils in the universe's Saint Realm would cause great damages to Qingfeng Li and others when they went to the Crimson Fire Continent.

Although Qingfeng Li was not afraid of them, he was worried about the safety of the people around him.

With a wave of his hand, Qingfeng Li led Tu Ba, Tiandie Mu, and the others forward.