I don't know if its the same with cornsnakes..but when my BP escaped I tore up the entire hosue looking for her...and then I found her...not even 2ft away from her cage. So look around the room wher ehe was kept in, and maybe you'll find him. Also, maybe go buy a live mouse or something and put it in a tub with holes in it so the scent will carry..maybe set up a heat pad somewhere...best of luck.