My daughter's ball escaped about 2 weeks ago (I take responsibility, I didn't secure the tank properly) and we were fairly certain he had no way into the heat ducts. We've been leaving her pet mouse out in a cage on the floor (after we pulled the house apart) with his heat lamp and shelter near it hoping that would lure him out. Last night i found some scales on a sweater in my room, downstairs. At first i thought he must have slithered across the sweater. But the more we thought about it, there is a ceiling register in the ceiling about 2.5 feet above the sweater and there were more scales only on the clothes directly below this register. So we think he must have found the ONE floor register cover with a small hole (which is on the opposite side of the house, but the same floor from my daughters room) and somehow gotten in there, then taken the path to the downstairs. So now that we think we know where he is - how do we get him out? We've already put the mouse in the cage by the opening to the register to try and lure him back. Is there anything else i can do?