"The Aesir. They're the more warlike of the Norse gods. Especially Odin, the All-Father and king of the Aesir. He runs Valhalla -- that's the hotel for the glorious dead I was at before this. The point is that we get used to killing and dying so that when Ragnarok -- that's the apocalypse -- comes, we fight and die well." Magnus makes an even bigger face. "I decided after the zombie that I'm done with all that, though. I'm keeping Jack here so he can't start Ragnarok -- um, my sword is predicted to cause several of the harbingers of the apocalypse -- and I'm not fighting again unless I really have to."