Robert and Mark are twin brothers who reluctantly accompany their scientist mother on an Arctic island expedition to observe muskoxen. What starts out as a boring and difficult holiday turns into an amazing, thrilling adventure.
- ISBN10 0006481469
- ISBN13 9780006481461
- Publish Date 17 May 2001 (first published 13 January 2000)
- Publish Status Out of Print
- Out of Print 26 September 2003
- Publish Country CA
- Imprint HarperCollins (Canada) Ltd
- Edition New edition
- Format Paperback
- Pages 206
- Language English