Gregor has a role to play in the Underland's uncertain future and Gregor embarks on a dangerous adventure that will change both him and the Underland forever.
The Underland Chronicles includes:
- Gregor the Overlander
- Gregor and the Prophecy of Bane
- Gregor and the Curse of the Warmbloods
- Gregor and the Marks of Secret
- Gregor and the Code of Claw
- exclusive Gregor paperback journal