Idea!
> More mind tricks. We really must become more disciplined than this...
> Look around the room for a few moments with a slightly confused expression.
> If no one reveals themselves, shrug with a 'whatever' look on our face and leave the room, dashing back to the door through which we first entered the manor.
> Stop at the door and close it with us still inside, then hover slightly off the ground, turn around, and look around for hiding spots near the ceiling that are not in the line of sight of someone in the kitchen.