A skill largely unique to the Darkness, and indeed, one of the defining factors of that People; however, it is not unique to them. On occasion, others have it, too, and it is a vision of terror.
To Devour is to utterly consume.
There is nothing left.
There is no waste.
Sometimes, there is not even memory.
Ironically, the Curse-Eater cultists never have this skill. In fact, it’s a disqualification for joining.