The Book of Dust is a forthcoming trilogy of fantasy novels by Philip Pullman, a companion series to His Dark Materials. The first book, La Belle Sauvage, is set 10 years before Northern Lights and centres on Lyra Belacqua, one of the original protagonists. Alethiometers, dæmons and the Magisterium also return, alongside new characters, including a new hero. La Belle Sauvage will be published in October 2017

