Guy Haley is the author of the Horus Heresy novels Wolfsbane and Pharos, the Primarchs novel Perturabo: The Hammer of Olympia and the Warhammer 40,000 novels Dark Imperium, The Devastation of Baal, Dante, Baneblade, Shadowsword, Valedor and Death of Integrity. He has also written Throneworld and The Beheading for The Beast Arises series. His enthusiasm for all things greenskin has also led him to pen the eponymous Warhammer novel Skarsnik, as well as the End Times novel The Rise of the Horned Rat. He has also written stories set in the Age of Sigmar, included in War Storm, Ghal Maraz and Call of Archaon. He lives in Yorkshire with his wife and son.