When the magic spyglass transports Mattie, Alex, and Sophie Chapman to the Yukon Territory during the gold rush, they enlist the help of author Jack London to track down a boy's stolen sled dog.
- ISBN10 0786947764
- ISBN13 9780786947768
- Publish Date 25 March 2008 (first published 1 March 2008)
- Publish Status Out of Print
- Out of Print 4 February 2014
- Publish Country US
- Imprint Mirrorstone
- Format Paperback (US Trade)
- Pages 111
- Language English