Oh, and about the PC-NPC: If he's been away for a while, it may've been a better idea if you had caused his PC to *poof* for a while until he returns. A sprite, lantern archon, or other such critter could inform the group that his/her/its master, Soandso, the Grand Poobah of Whatsit, required his presence, and he'll return when the Grand Poobah no longer requires his services. The reasons don't matter; the messenger can *poof* afterward, and later on you can return him to the group with some additional XP and treasure as results of whatever it was he did for his uncanny employer.