Sam's parents are trying to extract his twin -- who's still inside Sam's body.
- ISBN10 0613218787
- ISBN13 9780613218788
- Publish Date 1 October 1999
- Publish Status Out of Print
- Out of Print 17 March 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Language English