In the dark outer realm, on an invisible stellar debris.
Meng Chuan sat cross-legged in the cave abode's courtyard. Above the courtyard was the vast void.
Whoosh! Whoosh! Whoosh!
A fist-sized gray stone hovered in front of Meng Chuan. The gray stone glowed with a faint crystalline luster. The liquefied outer realm essence flew out from the gray stone and fused with Meng Chuan's body as he constantly absorbed it.
This was an Outer Realm Essence Stone.
Outer Realm Essence Stones were objects condensed from outer realm essence energy. However, too many impurities defiled these stones. Compared to the impure stones, Outer Realm Essence Crystals didn't contain any impurities at all. An Outer Realm Essence Crystal was thousands of times purer than an Outer Realm Essence Stone of the same size. Of course, Outer Realm Essence Crystals had differences in their purities.