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 8984886149
- ISBN13 9788984886148
- Publish Date 19 January 2009
- Publish Status Unknown
- Imprint Baeteul Book/ Tsai Fong Books
- Format Paperback (US Trade)
- Pages 44
- Language Korean