Graham McNeill's extensive back catalogue includes the Horus Heresy novels The Crimson King and Vengeful Spirit, and the New York Times bestselling A Thousand Sons. Graham’s Ultramarines series, featuring Captain Uriel Ventris, is now seven novels long, and has close links to his Iron Warriors stories, the novel Storm of Iron being a perennial favourite with Black Library fans. He has also written the Forges of Mars trilogy, featuring the Adeptus Mechanicus, and the Warhammer Horror novella The Colonel’s Monograph. For Warhammer, he has written the trilogy The Legend of Sigmar, the second volume of which won the 2010 David Gemmell Legend Award.

Aaron Dembski-Bowden is the New York Times bestselling author of the Horus Heresy novels Echoes of Eternity, The Master of Mankind, Betrayer and The First Heretic, as well as the novellas Aurelian and Prince of Crows and the audio drama Butcher’s Nails, for the same series. He has also written the Warhammer 40,000 novels Spear of the Emperor and Ragnar Blackmane, the popular Night Lords series, the Space Marine Battles book Armageddon, the novels The Talon of Horus and Black Legion, the Grey Knights novel The Emperor’s Gift and numerous short stories. He lives and works in Northern Ireland.

Chris Wraight is the author of the Horus Heresy novels Ashes of the Imperium, Warhawk, Scars and The Path of Heaven, the Primarchs novels Leman Russ: The Great Wolf and Jaghatai Khan: Warhawk of Chogoris, as well as several novellas and the audio drama The Sigillite. For Warhammer 40,000 he has written the Space Wolves books Blood of Asaheim, Stormcaller and The Helwinter Gate, as well as the Vaults of Terra and Watchers of the Throne series, The Lords of Silence and the Dawn of Fire novel Sea of Souls. Additionally, he has many Warhammer Fantasy novels to his name, and the Warhammer Crime novel Bloodlines. Chris lives and works in Bradford-on-Avon, in south-west England.

Nick Kyme is the author of many Horus Heresy novels, novellas and audio dramas, including Old Earth, Promethean Sun and Nightfane. His novella Feat of Iron was a New York Times bestseller in the Horus Heresy collection The Primarchs. For Warhammer 40,000, Nick has written Volpone Glory and the Dawn of Fire novel The Iron Kingdom. He is also well known for his popular Salamanders series and the Cato Sicarius novels Damnos and Knights of Macragge. His work for Age of Sigmar includes the short story ‘Borne by the Storm’, included in the novel War Storm, and the audio drama The Imprecations of Daemons. He has also written the Warhammer Horror novel Sepulturum. He lives and works in Nottingham.