mine has escaped twice, the first time due to her squeezing through the tiniest of gaps in the glass, and the other due to carelessness, look in the most unusual of places, and also check all the obvious places 2/3 times, i looked twice in one spot and found her the 3rd time of looking because i heard a noise, you could use masking tape, as its not sticky enough to hurt your snake, but is sticky enough to hold it, you could also use plastic bags, once you hear a noise POUNCE! haha good luck with finding your escapee