Adèle & Simon in America - McClintock, Barbara 1955- (Farrar, Straus and Giroux, 2008)
When Adèle and Simon visit their Aunt Cécile in New York City, she takes them on a train trip around the United States, but from Boston to San Francisco to Washington, D.C., Simon keeps losing his belongings, despite his sister's reminders. Includes facts about the places they visit.