He listens carefully, comparing her explanation to everything Sam's ever known about supernatural forces. Though the terminology isn't all the same, he thinks he has a pretty good idea now of what's going on. Not that it makes him entirely comfortable yet.

"So that's what you are. You're a reaper," he says, still eying her warily. Sam's only had a couple run-ins with reapers in his life, but neither one of them had looked anything like the woman standing in front of him now. For one, she's actually corporeal.