| Other Title | The 39 Clues : Book 4 |
| GMD | Text![]() |
| Classification | 813.6 WAT |
| Publisher | New York, Scholastic, c2009. |
| Subject | Orphans -- Juvenile fiction.Brothers and sisters -- Juvenile fiction.Wills -- Juvenile fiction. |
| Description | 168 p. : ill. ; 20 cm. |
| ISBN | 9780545060448 |