[That's perfectly fine - immersion is the best teacher, after all, and Enoch is willing to wait. He's half-expecting to have to answer a question, but he's glad when Flynn's response comes and it's correct. Mostly.]

Ideally. It's where a soul is compelled to go after its body dies, but if it is chained to Earth somehow, or if a demon has laid claim to it, or has been stalking the dying person in the hopes of snatching up their soul, they can be stolen away.

The Tower the Grigori built was accomplished with the aid of a demon prince. In return, he claimed all the souls of those who died within it. For three hundred years, anyone who lived and died there was condemned by default. The Grigori had a veritable army of twisted souls. There were lines of victims fed into the depths of Belial's domain.