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.
- ISBN10 0374399247
- ISBN13 9780374399245
- Publish Date 29 November 2012 (first published 19 January 2009)
- Publish Status Unknown
- Out of Print 14 May 2014
- Publish Country US
- Imprint Frances Foster Books
- Format Hardcover
- Pages 32
- Language English