Try putting a small box in a dark corner over a heating pad. Turn the heat down and stay out of the room overnight. If you have more than one heating pad do this in several places (remember SMALL box) Make the heating pad warmish/hot (not too hot). Leave it for a few days, check every so often. I have had good luck doing this. I have found that my snakes dont go far (when I used to work 2 jobs I would fall asleep holding my snakes: stupid me: did this twice. Each time I found them this way.