- Reading level: Ages 9-12
- Paperback: 240 pages
- Publisher: Little, Brown Books for Young Readers; Reprint edition (February 1, 2010)
- Author's Website:
- Buy the book: Paperback, Hardcover
Follows the further adventures and misadventures of Hiccup Horrendous Haddock III as his Viking training continues and his father leads a stranger and the Hairy Hooligans to the Isle of Skullions in search of a pirate's treasure.