"Thorn, a boy sold into slavery who must serve the royalty of Castle Gloom for a year and a day to earn his freedom, and Lilith Shadow, the 13-year-old ruler of Gehenna, who is forbidden to practice the magic that is her heritage, join forces to solve the murders taking place in Gehenna"--
- ISBN10 1484732723
- ISBN13 9781484732724
- Publish Date 12 April 2016
- Publish Status Out of Stock
- Publish Country US
- Imprint Little, Brown Books for Young Readers
- Format Hardcover
- Pages 336
- Language English