The frying pan that vanished while I was away, presumably stolen by Aunt Dee, has been found! I'd looked in Grandma's usual hiding spots of the basement and the hallway closet, but no dice. The pan turned out to be in a semi-reasonable location for a kitchen item - in a cabinet under boxes of wax paper and foil. Hooray!
Of course Grandma had forgotten the frying pan ever existed, so she did not share in my joy at its return. She was back to her original commentary of, "I never saw such a big pan! Where did you get such a thing?"
Maybe Aunt Dee is turning away from her life of crime and mending her ways. Maybe more stolen items like the bath mat will start turning up!