[House wasn't primitive enough to actually mark his territory in such a crude way...but he'd been tempted a few times. Honestly, under the right circumstances, he might just do it if only to see the shocked and horrified reaction.]

Well, Daud could teleport, at least for short distances. Doesn't explain why he'd teleport out of his room, though, or why he hasn't come back.

[He moved into the room, gazing about thoughtfully.] Can you tell if any imps or fairies have been in here? Or anyone else who could've teleported him away?