The First Fifteen Lives of Harry August is the first book from Kate Griffin written under the pen-name of Claire North.
Magicals Anonymous is the newest series from Kate Griffin, set in the same fantastical London as the Matthew Swift novels.
Kate Griffin is the author of the Matthew Swift novels:
- A Madness of Angels 
- The Midnight Mayor 
- The Neon Court 
- The Minority Council 
As Catherine Webb, Kate is also the author of eight titles for teen / young adult readers, including four books in the Horatio Lyle series: