After twelve-year-old Nathan's pesky younger brother Ryan claims to have found a dinosaur fossil, they are suddenly transported into a misty world where Ryan's toy dinosaurs are alive.
- ISBN10 0606173277
- ISBN13 9780606173278
- Publish Date 1 January 1999 (first published 14 April 1998)
- Publish Status Out of Print
- Out of Print 30 April 2014
- Publish Country US
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover
- Pages 96
- Language English