The Edge Chronicles Book Series

The Edge Chronicles is a children's fantasy novel series written by Paul Stewart and illustrated by Chris Riddell. The stories of The Edge Chronicles take place in the fictional world of The Edge, a vast cliff with no apparent bottom. The majority of books are grouped into sagas, with each saga focusing on one character. The power of flight is a major theme of the books, with each age defined by the current technology used for air travel. In the first age, floating rocks were used to stay airborne, then floating wood was used, and finally phrax-power. The series is notable for its flora and fauna, along with the maps of various locations in The Edge.