The main conflict in the book is that Evie’s family is not what she thought it was. We do not find out until later in the book that Evie’s stepfather cheated Peter out of a deal involving the stolen possessions of Jews, and Evie’s mother is having an affair with the soldier that Evie is also in love with.
This conflict is solved when Peter, Evie and her mother’s love interest, is killed on a boating trip on their sudden vacation to Florida. Peter tells Evie:
When I was overseas, I’d look up at it, and I couldn’t get that the same moon was over here too. Everything happens under the same moon. Things you never thought you’d see. Or do. (p. 108)
This comment reflects not just Peter’s experience with the war and the shady business deal, but also what is about to happen to him. Evie begins to realize what happened, but she knows that unless she lies her family will be torn apart. Thus Evie also has an internal conflict because she needs to decide what to say.