Somehow or another my ball, Paris, managed to open the locking mechanism on his cage and open it. I wasn't home at all yesterday, but he was in there the day before. Today, cage was open just enough for him to get through and he's gone. I've looked everywhere around my room and around his cage, but I can't find him anywhere.

Outside my room the hallway is completely slate, and the furnace hadn't been on at all for a couple days, so I imagine it was cold, no matter what time he left. The rest of the house except for bedrooms (doors shut, he couldn't fit under the doors, I've seen him try) and the living room (which is pretty far from my room) the rest of the house is the same cold slate...

Any ideas on how to find him? I've been watching the cat pretty close, figuring he'd give Paris away, but he hasn't yet...