Keeping some of the meat and bones along with a trace of its energy, he left it there and went to a distance before concealing his aura.
...
Detecting the energy they have thirsted for a long time, many undeads and demons gathered near the remains of the undead, each trying to devour it whole. But in this place where many powerful undeads gathered, even getting a tiny piece was a hard task.
Monsters who came early would store it within themselves as they can't use it for themselves without refining it, otherwise it would become poison instead.
As the monsters gathered, they would kill each other to reduce the competition while the creature who got a piece would be ganged up on and brutally slaughtered by several monsters.
