One of my female capras got loose and I found her a week later. My reptile room has lots of wooden stands and shelves for the babies, the snakes, and the rodents so there is lots of hiding room. I kept checking anything I though she could climb and when I found her she was on the floor next to her viv and I would have stepped on her if I hadn't seen her when I did :O
I did keep a pan of water and a dish of mealies on the floor in hopes she would be attracted to them but they were on the other side of the room! If your viv is built of wood she could even climb that if she is loose. Check the back and on top just in case.
Good luck, I hope she shows herself soon!
Marcia 