Okay, I'm grasping at straws here...is there any ductwork, for air conditioning or anything? Any openings? Fireplace(even a decorative one). Entrance to an attic at top of a linen closet, or something?

Oh hon, I wish I could make her just appear!

I remember when my sister's indoor cat fell out a ground-floor screen many years ago - he hid inside a bush right in the front yard. He didn't go far...he was scared.

Maybe leave a dish of food outside overnight?

HUGS HUGS HUGS

Catty1