"Ah, well." Uh, oh, Kirrahe... he was going into lecture mode. Lyall looked rather more animated, describing the theory. "On Earth-- my version of Earth, whatever that means-- some individuals possess a trait which we call excess soul. This may or may not relate to actual spiritual properties, but considering its connection to ghosts and undeath, most theories tend to assume it does. Those who possess this trait live on after death, usually in the form of a ghost tethered to their mortal remains, at least until second death when their remains degrade too much to hold them or they are exorcised. Those of us who are killed by a vampire queen or werewolf Alpha, following the traditional protocols, come back to life in our old bodies, fully healed and immortal, as a vampire or a werewolf with the standard traits of either supernatural line. In the case of werewolves, obviously, turning into a wolf."

Among other things. He didn't immediately enumerate all the other abilities. He liked Kirrahe's promise as a fellow conspirator, but he didn't trust him that much yet.