Swish!

Within the room, strands of thick and seemingly material Netherworld Energy flowed out from Xue Kong’s corpse, and then Chen Xi formed seals to drawn it into the Netherworld Register before him.

Netherworld Energy was very special, and it was completely different from the various types of spirit energy in the Mortal Dimension. It was filled with an icy cold, deep, pure, thick, and merciless feeling.

It was like icy cold metal and unlike spirit energy that was exuberant with vitality and extremely lively. But undeniably, Netherworld Energy was similarly an extremely formidable energy.

This sort of energy was even better than spirit energy, yet it was inferior to Immortal Energy.

It was precisely because of this that Chen Xi was able to subdue and gradually draw the Netherworld Energy into the Netherworld Register with the Immortal Energy in his body.

Om! Om!

Along with the Netherworld Energy surging into the Netherworld Register, the palm sized and completely jade white book shaped Netherworld Register’s surface silently surged with a wavy glow, and its aura was grand, vast, and profound.

Chen Xi couldn’t help but be delighted in his heart when he saw this. Sure enough, Netherworld Energy is the key to opening the Netherworld Register. No wonder I was unable to discover the secrets hidden within it in the past…

Swoo...