Will my Iggy eat my Hamster?

I left for the weekend and I left my Green Iguana out lots of food and water. I sprayed him lots with a spray bottle also. He has a small area in my window with his heat rock and light and food and water. When I came home, I found that my iguana was upstairs in my son's room. Then, I checked on my daughter's animals (ferret, 2 hamsters, and 2 gerbils) and 1 hamster was gone. We have looked EVERYWHERE and cannot find the little thing. It is a Golden Fancy Hamster. Also, my iguana won't eat (and he normally would when he has dry food) and he is acting very weird! PLEASE help!! My daughter is crying very hard. This is an emergency.