This book takes place in the 70's. Two sisters and their mother keep moving all the time because mom finds something wrong with every place they ever lived. The mother leaves the girls ages, 15 and 12 for long periods of time to "find herself". But that is okay. She leaves a freezer full of pot pies to sustain them until she is back.
One time she did not come back and neighbors reported them to the police. So the girls rush out and go to their mother's home town, a town they themselves were born in, left as babies and never returned. Here they finally come to have some security with their reclusive uncle.
Mom finally finds them after she read their note written in "code". The older girl gets assaulted by her scummy employer, there is a trial and secrets are revealed.