In his continuing adventures, Twig, now sixteen years old, joins the crew of his father's sky pirate ship and embarks on a dangerous mission to collect the powerful stromphrax, a substance that purifies water and also prevents the city of Sanctaphrax from floating away.
- ISBN10 0385750706
- ISBN13 9780385750707
- Publish Date 22 June 2004
- Publish Status Out of Stock
- Publish Country US
- Imprint David Fickling Books
- Format Hardcover
- Pages 384
- Language English