Catherine Webb's first novel, ''Mirror Dreams'', was published when she was 14 years old. Her works so far consist of:
* The ''Mirror'' duet, ''Mirror Dreams'' and ''Mirror Wakes'';
* The ''Waywalkers'' duet, ''Waywalkers'' and ''Timekeepers'';
* The ''Horatio Lyle'' cycle, ''The Extraordinary and Unusual Adventures of Horatio Lyle''; ''The Obsidian Dagger, Being the Further Extraordinary Adventures of Horatio Lyle'', ''The Doomsday Machine: Another Extraordinary Adventure of Horatio Lyle'' and ''The Dream Thief.''

She is currently writing the MatthewSwift series under the pen name Kate Griffin.