You will shocked at the small spaces they will hide in. My sister's corn snake hid in a box of dog biscuits, not just in the box but under the treats, he is a fully grown orange corn snake and although we looked there we had no clue he was in the box. What we ended up doing was reading in the room his cage was in and eventually we heard the treats rattling and there he was, we actually had to dig in the box to see him.