Guy Haley is the author of the Horus Heresy novel Pharos, the Space Marine Battles novel Death of Integrity, and The Beast Arises novels Throneworld and The Beheading. He has also written the Warhammer 40,000 novels Valedor, Baneblade and Shadowsword. His enthusiasm for all things greenskin led him to pen the eponymous Warhammer fantasy novel Skarsnik, as well as the End Times novel The Rise of the Horned Rat. He has also written a number of stories set in Warhammer's new Age of Sigmar setting. He lives in Yorkshire, England with his wife and son.