WoW writes: "Want to do the Love is in the Air holiday bosses? Short version: don't stand in things.
Longer version, you say? Sure, we can do that. First off, while there is a quest chain that leads you to Shadowfang Keep, you do not have to have done any of those quests to engage the evil Crown Chemical Company apothecaries: there's a helpful NPC, Investigator Fezzen Brasstacks who will give you the quest and items necessary for the fight. Like previous holiday bosses, you'll be able to engage the apothecaries once per player so yes, you can chain in alts and keep repeating the fight over and over again. (I believe we killed them roughly eight times before people started getting sleepy.)"