Sorry to hear about your little cham. I hope you find the little leo soon. I have lost a couple herps in my herp room. I always get down as low as I can to the floor and check in any nook and cranny. I've lost leos once and my blue tongue last week and found them both within 5-10 minutes. But man, if felt like hours while I was frantically looking. Look for a dark warm place, you may find him there. Keep us posted. Again sorry about the cham.