The vent is straight for a while when you go in it, but we didn't see him there when we recorded a video of it (with a light). There's also a straight drop down two floors after the narrow space, we sent a camera down there while we used face time to get live footage of it. He wasn't in there either. I don't think, even if he were in there that we could draw him out with a scent. I'm afraid he could've gotten caught on a nail on his way down and we couldn't see it because the camera was facing one way. Also, I looked behind all the big objects, beds, dressers, desks, and in the drawers and I haven't had much luck.