He would be able to scavenge up to three things from the robot; a power cell, the energy projector it used (nonlethal damage), or the armor plating that it had. (DC 25 Know: Engineering to scavenge one, scavenge an additional one for each 5 you beat the DC)<br/><br/>There was nothing of value in the room, except maybe the wine, but it wasn't even that great. There was a set of stairs leading up, however.<br/><br/>The last door that was unexplored was aimed at the center of the tower. A DC 30 Perception check notices that it seems to be straining, very slightly, as if something were pushing against it.