Hollyandcassandra

About Holly Black and Cassandra Clare

Holly Black is the bestselling author and cocreator of The Spiderwick Chronicles series and won a Newbery Honor for her novel Doll Bones.

Cassandra Clare is the author of bestselling YA series, including The Mortal Instruments and The Infernal Devices.

They both live in Western Massachusetts, about ten minutes away from each other. This is their first collaboration.