'Mortal Instruments' series becomes movie

Cassandra Clare’s Mortal Instruments books will be developed into a series of movies, it has been reported.

Screen Gems will team up with Constantin Film and Unique Features to develop the motion picture franchise. Jessica Postigo has written the script, which is based on the first book in the series, City of Bones, writes Coming Soon.

City of Bones, set in contemporary New York City, follows a seemingly ordinary teenager named Clary Fray who discovers she is the descendant of a line of Shadowhunters, a secret group of warriors dedicated to driving demons out of our world.

The Mortal Instruments is a series of four novels published by Margaret K. McElderry Books, a division of Simon & Schuster, Inc., including City of Bones, City of Ashes, City of Glass and the upcoming City of Fallen Angels.