What a scare!!!! Thank God they are both okay!

We leave both our girls in the house when we are gone. Living in town, I am just too afraid they will find a way to get out of the fence or someone would let them out. Cincy is still crated cause she chews on the door frames, but Sadie has the house (except the bedrooms). They really don't seem to mind. Cincy goes in her crate pretty willingly and Sadie just sleeps on the couch

Is it possible they got out underneath somehow?