Gary,
I know that Bigby the Mage started out as an apprentice to Mordenkainen (after, I have heard, being captured by Mordy!). I was wondering, were there ever any other PC mages that had dealing either with their former masters or who acquired any apprentices of their own and did these interactions ever have repercussions in your campaign? I'd be interested to know if Tenser, Otto or Drawmij (aka Bombadil) ever undertook any quests for their former mentors, or sent their apprentices on any such quests.
Thanks! (And I cannot wait for Zagyg's Castle, btw!),
Gray Mouser
(Frustrated Mage but adept thief and swordsman