Holly Black is the author of bestselling contemporary fantasy books for kids and teens. Her titles include the Spiderwick Chronicles (with Tony DiTerlizzi), The Coldest Girl in Coldtown, the Magisterium series (with Cassandra Clare) and the Folk of the Air series, which begins with The Cruel Prince in 2018, nominated for the CILIP CARNEGIE MEDAL 2019, and w inner of the Silver Inky for best International YA book. She has been a finalist for an Eisner Award, and the recipient of the Andre Norton Award, the Mythopoeic Award and a New bery Honor.