Given a choice to go outside/missing!

[Freakie_frog]

Still searching. We have a central vacuum system also, and a couple flaps stay open.
Does anyone think a BP would go down one of those?? Since it is a one way so to speak it seems unlikely but I am running out of places to look. The open door I mentioned before was pretty close to her home....less than 10 feet for sure. It is upstairs though and I just can't see her getting out from there.
thank you.

Its possible I keep a shop vac in the snake room and have had babies get left open and found them in the shop vac hose or in the vac canister itself.. Nothing is off limits when it comes to where they might be.