Mortal Instruments author Cassandra Clare and The Spiderwick Chronicles author Holly Black have landed a book deal for a five-book middle grade fantasy series.

Scholastic will publish the first book, The Iron Trial, in 2014. Editorial director David Levithan negotiated the deal with literary agents Russell Galen (for Clare) and Barry Goldblatt (for Black).

Here’s more from the release: “In this exciting new series, twelve-year-old Callum Hunt has grown up knowing three rules by heart. Never trust a magician. Never pass a test a magician gives you. And never let a magician take you to the Magisterium. Callum is about to break all the rules. And when he does, his life will change in ways he can’t possibly imagine.”

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