About an hour after making my post I did a final run through my room before I decided I would succomb to sleep, I was checking the windowsills and the undersides of my chairs and furnature and I happened to look into a basket (that I had checked four or five times earlier) and she was there...I have no idea where she was originally...but I have her back, and she's going into the 10gal with the secure screen top until I can have a screen top made for the 55gal.