[.98 Gameplay] Alzor's Armor quest

I hit a quest hut that had the Alzor's armor quest.  I accepted the quest, battled the spiders and won (although I switched to auto-resolve partway through the battle), but did not receive the armor.  The quest is still listed in the kingdom report as an active quest, but if I go back to the quest hut it tells me that the location has already been visited and has no quests.

Sorry I don't have a saved game.  I didn't think to check for whether I had the armor until several moves later.