Book excerpt: Sara, thirty-four and a mother of three, never understood her father, Paul. He left her, her mother, and sister after he returned from the war. After she'd grown and moved away with her husband and three kids, her dad reunited with her mother. Years later she finds her and her family moving to be closer to her mother. When Sara and her dad reunite, they end up in a big argument. Her mother makes a wish. And they find themselves in each other's bodies. The only person that knows is Sara's three-y