Since the death of their mother things have been tough for the family - the bills piled up and dad was overwhelmed. Things got so bad that dad sold almost everything and bought a suburban and they left Texas and left for Montana. Dad has a new job but they are living in the car. But then one morning when Lulu and Serena wake up dad is gone. When he disappeared before (for a month) they were living with the aunt but now Lulu and Serena are alone. Serena is afraid to tell anyone because she is afraid of being separated from her sister. How long can she make the money last and keep the secret - as the money runs out, as the weather gets colder, as things fall apart?
This was another eye-opening look at homelessness and the helpless and hopeless feelings. The book ends well with dad being found and the realization that help was there for the asking. Books like this are good for students to see how some people are forced to live and for them to be more understanding.