Yellow Mud Coffin, Evil Ancient Soul Power!

Immortal World, Blood Rock Domain.

Ten thousand meters beneath the earth, a figure hid within a karst cavern, his aura weak.

It was none other than the Fountain of Youth Immortal...

In order to escape from the Long River Domain, he had paid an enormous price, burning away more than half of his Origin Immortal Source!

"Phew!..."

The Fountain of Youth Immortal exhaled a turbid breath and stopped cultivating.

His features were somewhat twisted as he gnashed his teeth!

"Damn it! Which beast has been plotting against this Immortal? Don't let me find out, or it will be a fight to the death!"

The Fountain of Youth Immortal roared repeatedly, his expression utterly grim.

He knew his troubles were enormous...

With the Frost Immortal Lord dead, the Long River Sword Immortal certainly would not let him off!

"Hmm?"

Suddenly, the Fountain of Youth Immortal sensed an obscure, ancient fluctuation that made even his heart palpitate!

Thus, he immediately formed a hand seal and followed the sensation to continue investigating.

Deeper!

Deeper still!

In the end, the Fountain of Youth Immortal found a ruined ancient underground palace!

The palace was filled with an ancient, weathered aura, while that ancient fluctuation came from its depths.

Finally, following his senses, the Fountain of Youth Immortal found the source—a Yellow Mud Coffin!

It was not large and looked exceedingly crude, yet it exuded a mysterious ancient charm, carrying an aura of immortality and immense power!

The Fountain of Youth Immortal's heart shook violently!

For even one as powerful as him, upon approaching the Yellow Mud Coffin, his immortal body trembled violently, and it seemed as though his Immortal Soul was about to be suppressed until it shattered!

"Whose coffin is this? How terrifying! Could it... have been left behind by an Immortal Emperor? No!