393 Journey to the West

"The final material is the Essence of the Undying Heart. As long as I can discover the Essence of the Undying Heart, I'll have all the materials to upgrade Dumby to the Mythical grade." Gao Peng smiled.

"The Essence of the Undying Heart can be found in the Black Fog world, but it may be more difficult for you. This thing isn't big or small, and monsters that really need this material will search for it desperately, yet those that don't need this material also consider it treasure," said the Desolate Frost Lion after some thought.

"The function of this material is to purify the filth of the soul. It can further cleanse the soul. Some monsters that emphasize the purity of the soul like this material very much." The Desolate Frost Lion licked the corner of its mouth. "Give me another piece of the biscuit now."

Gao Peng took a white wafer biscuit out of the box. The biscuit was white with some small white pieces on it.