Warner Bros has made a preemptive buy on Gitty Daneshvari's partial manuscript of a four-book series called School Of Fear.

Graham King will produce through his GK Films as the partners aim to establish a children's franchise along the lines of the phenomenally successful Harry Potter series.

The story is based on Daneshvari's unpublished book about four youngsters sent to an exclusive summer camp where they are trained to overcome their phobias. Little Brown will publish the book in autumn 2009.

Grey Rembert and Gail Lyon will oversee production for GK Films and Lynn Harris will oversee for Warner Bros.