I have one pet mouse that I kept to use for scenting. Somehow she escaped/disappeared from her two story mouse cage. There are no holes and the wires are too small for her to crawl through (I think). I've kept mice in there before and none have disappeared. She even has her own wheel! I don't understand why she wanted to leave her happy home in the first place when I have dogs and cats around the house. Any chance of me even finding her? Or is she a goner?