Nadia's soul essence was spherical, just like his or any other human, to be exact. It glowed with a dark illumination.
If the soul essence is brought outside from the soul sea, it tends to take the shape of its host as if it were the DNA version of the soul.
Davis had seen this phenomenon before, and it momentarily made him think what exactly humans and magical beasts are, but his concentration brought him back.
He shaped his tentacle-like soul essence into a scalpel and carefully yet prudently cut a percent of her soul essence with precision before collecting it with his soul force.