Thanks everyone.
Dh called a few mins ago - he sounds like his about to cry - broke my heart Shes his furbaby.
The thought crossed my mind that maybe shes tried to find her way back to the old house... it would mean crossing a few busy roads though???
I've opened all the cupboard doors, garage door, washing machine had washing in there from yesterday, all the doors are open, there is food at each door, will go for another look around the streets later and door knock.