Heh, I finally got around to reading the log of last session and was quite amused by the many failed attempts to kill the bunny, none of which would have happened if I'd been there. First round, I would have followed up Kaylin's successful Mind Fog with
Greater Command: Halt! (DC 23, hard to make with only +5 after Mind Fog's penalty), and my Holy Bow would have gone right through its DR/good and regeneration/good. Oh well, it was much more amusing this way.
Does the newly Animated wagon count as a "creature" (not necessarily living)? If so, it's a valid target for Wind Walk, and I can drastically speed up the rest of the journey.
My next opportunity to pick up Hero's Feast will be at 16th level, unless Kaylin helps out with a Limited Wish. For explaining it IC, I think it would be quite reasonable for Kaylin to complain about all the things that have sent a substantial portion of the party running in fear recently, she's got plenty of Knowledge Arcana to figure out that Hero's Feast would deal with it and that powerful clerics can cast it, and Elorin has demonstrated similarly powerful divine spell casting ability several times in her presence. A fairly short IC conversation would reveal the problem (Elorin's spells known != entire Cleric spell list, unlike for clerics), and Kaylin has already used Limited Wish to fix somewhat similar problems with herself so suggesting it would seem pretty obvious.
On a side note, does it even require a roll for Elorin to be familiar with at least the basic names and capabilities of every spell on the Cleric list, at least the ones of low enough level for him to cast? Unless the character doesn't actually pick his own spells known (i.e. his god picks for him, or the knowledge comes instinctively with no knowledgable guidance, neither of which makes much sense to me without taking the choice away from the player too), I'd think he would have been presented with the list to choose from at some point.
One of my new 7th level spells (
Destruction) requires a 500 gp focus that I haven't gotten yet. Can we just assume that I bought that offscreen before we left seeking the Archmagi?
As for why the party would go along with this side quest, we've exhausted all of our leads on the Sorcerer at the moment, we know he needs a certain bit of knowledge that the only known sources of are in the party, and you do have a stated reason for staying with the party afterwards. Also, if you state that you're going whether we come with you or not, we do have something of a vested interest in making sure such a proven and potent aid in our quest remains alive and able to help. Also, if we didn't accompany you, we'd be stuck trying to track down the Sorcerer without you while you were gone. For a more humorous explanation, see
this and
this.