The Hollywood Reporter has the news that ABC Family has green lit a new TV series based on Cassandra Clare’s Mortal Instruments series. Shadowhunters is planned to be a 13 episode series with no premiere date announced yet. Production will begin in May.

"Shadowhunters is a big, epic saga that will resonate with viewers who come to ABC Family for the Harry Potter, Hunger Games and Twilight franchises," ABC Family president Tom Ascheim said. "A New York Times best-seller for 122-consecutive weeks, with over 35 million copies in print worldwide, Shadowhunters is the perfect story to share with our audience."