Warner Bros. has brought on playwright/screenwriter David Auburn to adapt the Deborah Harkness novel A Discovery of Witches. The studio acquired the novel last summer.

The story centers on a witch who accidentally unlocks a magical manuscript, and finds herself trying to prevent an imminent war with the vampires. The witch is a direct descendant of one of the first women to be executed during the Salem Witch Trials.

Denise Di Novi and Alison Greenspan are producing for Warner Bros. No production schedule was given.

David Auburn won a Tony Award and a Pulitzer Prize for his play Proof. He wrote the screenplay adaptation Proof, and also penned The Lake House.