SO nice to see you back! I know that panicky feeling. Kisasa escaped twice on me. First time, I found her in a deep closet on the other side of the house, behind some boxes in the very back. ("Flashlight" is your best friend! LOL) I tell ya, I never realized how many tiny, dark, unreachable (by me!) places my home had until she escaped and I had to find her! I was very glad all I had to do was move a bunch of boxes. The second time, I could hear her moving and found her slithering behind some stuff against the wall.

It's unlikely you'll just see him slithering across the middle of a room...but follow along the walls....look for any "trails of destruction" (stuff knocked over or moved out of place) to help determine which direction he might have gone. Make the home as quiet as possible and just sit silently and listen. Try to think like he does...warm, quiet, dark, tight. And don't dismiss any hole, opening, crack, crevice etc that you think is "too small" for him to have fit through.

I'm sure you'll find him! And I don't think one day in a cool room will do him any harm!