Goblins XVII: The shocking end of the story arc

[Fyraltari]

... maybe I'm misremembering, but:
Wasn't there talk about "the other prison"?
Didn't it contain the opposite to what is held in the axe?

...would that mean Kore is the opposite => he needs to wash himself in evil stuff otherwise the "light" gets out?

His current state: he's bursting with light (see his head wound).

But I may be wrong.

There’s a Hammer of Prissan that holds some archangel according to the flea demon.

Edit: Also I just got the Prissan/prison thing. Erk.