This is concerning the Jeskar(?) encounter, his possession and the crystal afterwards. To put it simply my PCs failed at this, and that's fine failure is an option. They found and followed the clues, thought about demonic possession for awhile and have talked to nearly all of the evil NPCs in the AP. But when they finally caught up with him, it was sneak and stab, then dead cleric. They spooked after an invisible blasphemy went off and saves were failed, so they fled. I had the demon finish destroying the dead body (no res) and it left. To top it off they then hacked apart the crystal to get to the dead priest, and her loot.
So this is all bad, and the paladin felt terrible about this without any coaching.
Plane hopping ensued; items and body were returned to good outsiders of importance to Erastil.
So...what kind of Worldwound type penances can people think of? (not looking for paladin hate) I'm looking for a half night to night side quest that would help the diety. And I've already forbidden him from using a longbow for one year.