When Will Burrows and his friend Chester embark on a quest to find Will's archaeologist father, who has inexplicably disappeared, they are led to a labyrinthine world underneath London, full of sinister inhabitants with evil intentions toward "Topsoilers" like Will and his father.
- ISBN10 0439871778
- ISBN13 9780439871778
- Publish Date 1 January 2008 (first published 2 July 2007)
- Publish Status Out of Stock
- Publish Country US
- Imprint Chicken House
- Format Hardcover
- Pages 472
- Language English