last night my big brother ryan had to get a good nights sleep for fcat (a test in usa to see if you pass the grade) so he put a rock on bellas wheel. snuggleham she is in the same cage you have.and i guess she climbed the wheel like a ladder and slipped threw the blue thing and got out. this morning ryan saw her running a round the room at 6:30 AM and put his hand out and she came to him he grabbed her and put her back in her cage.
Glad she got back in the cage. Once my hammie Jelly got loose because I was taking her out of her cage and she climbed up my arm and jumped but we caught her!