On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.
- ISBN10 0670062650
- ISBN13 9780670062652
- Publish Date 2 October 2008
- Publish Status Out of Print
- Out of Print 13 March 2021
- Publish Country US
- Publisher Penguin Books Australia
- Imprint Viking Children's Books
- Format Hardcover
- Pages 56
- Language English