3 books in series

The Edge Chronicles: The Twig Saga

The Edge Chronicles: The Twig Saga is a 3-book series with 3 primary works first released in 1998 with contributions by Paul; Riddell Stewart, Paul Stewart, and Chris Riddell.

The Twig Trilogy (Edge Chronicles #4-6): Includes Beyond the Deepwoods, Stormchaser & Midnight Over Sanctaphrax