In a world where families are only allowed two children, third children are considered illegal and sent away to prison, but when Trey and the "Shadow Children" decide to take a stand against the system, they are aware that only one side will be victorious in this dangerous war. Reprint.
- Genre: Juvenile Fiction
- Subgenre: Action + Adventure / General, Science Fiction + Fantasy + Magic
- Age: 9-12 years
- Publisher: Simon & Schuster
- Pages: 229
- Edition: Reprint
- Language: English
- Format: paperback
- Release Date: August 30, 2005
- Date Published: August 30, 2005
- Author: Margaret Peterson Haddix