Lost my snake

I'm officially a bad parent.

Seems I left the lock pin out of my snake's aquarium the last time I opened it. Now I have an empty tank. I'm not sure how long he's been out, but I know I didn't look at him yesterday, so possibly days. I've searched high and low and he's hiding good. How a 4 and a half foot snake can disappear in my uncluttered house, I'm not sure, but it's depressing me greatly.

On the off chance that Sue has figured out this internet thing, please come out of hiding. I've got a yummy mouse for you