Where Trio stopped, Helix starts! There's a monster on the loose in the City… but will the mysterious Changelings of triple Helix destroy it before they realize it's really an old friend?
- ISBN10 161377883X
- ISBN13 9781613778838
- Publish Date 22 April 2014
- Publish Status Out of Stock
- Out of Print 28 April 2021
- Publish Country US
- Imprint Idea & Design Works
- Format Paperback (US Trade)
- Pages 104
- Language English
- URL https://penguinrandomhouse.com/books/isbn/9781613778838