Wow. That's a bummer that you can't find the snake. Do you have any rodent infestation - even a slight one? We get mice from time to time and I bet that might be her first place to go. Our mice come in our pantry and live in the attic.

Heaters, computer room, oven (in, behind, under, beside?), where you keep live feeders, in the snake room itself?

Good luck!!! Glad the snake was small and docile with your 3 yr old.