Modo, the shape-shifting, masked spy, and fellow spy Octavia Milkweed learn that Modo's biological parents are still alive but when the Clockwork Guild find Modo's parents first, Octavia and Modo chase them across Europe and North America to the Island of Doom.
- ISBN10 0375854061
- ISBN13 9780375854064
- Publish Date 10 September 2013 (first published 1 January 2012)
- Publish Status Temporarily Withdrawn
- Publish Country US
- Imprint Ember
- Format Paperback (US Trade)
- Language English