Jude Reid lives in Glasgow with her husband and two daughters, and writes in the narrow gaps between full-time work as a surgeon, wrangling her kids and failing to tire out a border collie. In what little free time she has, she enjoys tabletop roleplaying, ITF Tae Kwon Do and inadvisably climbing big hills.

Graham McNeill has written many titles for The Horus Heresy, including the Siege of Terra novellas Sons of the Selenar and Fury of Magnus, the novels The Crimson King and Vengeful Spirit, and the New York Times bestselling A Thousand Sons and The Reflection Crack’d, the latter of which featured in The Primarchs anthology. 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 Warhammer Chronicles trilogy The Legend of Sigmar, the second volume of which won the 2010 David Gemmell Legend Award.

Darius Hinks is the author of the Warhammer 40,000 novels Blackstone Fortress, Blackstone Fortress: Ascension and the accompanying audio drama The Beast Inside. He also wrote three novels in the Mephiston series: Blood of Sanguinius, Revenant Crusade and City of Light, as well as the Space Marine Battles novella Sanctus. His work for Age of Sigmar includes Dominion, Hammers of Sigmar, Warqueen and the Gotrek Gurnisson novels Ghoulslayer, Gitslayer and Soulslayer. For Warhammer, he wrote Warrior Priest, which won the David Gemmell Morningstar Award for best newcomer, as well as the Orion trilogy, Sigvald and several novellas.

Alec Worley is a well-known comics and science fiction and fantasy author, with numerous publications to his name. He is an avid fan of Warhammer 40,000 and has written many short stories for Black Library including ‘Stormseeker’, ‘Whispers’ and ‘Repentia’. He has recently forayed into Black Library Horror with the audio drama Perdition's Flame and his novella The Nothings, featured in the anthology Maledictions. He lives and works in London.

Chris Wraight is the author of the Horus Heresy novels Warhawk, Scars and The Path of Heaven, the Primarchs novels Leman Russ: The Great Wolf and Jaghatai Khan: Warhawk of Chogoris, the novellas Brotherhood of the Storm, Wolf King and Valdor: Birth of the Imperium, and the audio drama The Sigillite. For Warhammer 40,000 he has written The Helwinter Gate, The Lords of Silence, Vaults of Terra: The Carrion Throne, Vaults of Terra: The Hollow Mountain, Watchers of the Throne: The Emperor’s Legion, Watchers of the Throne: The Regent’s Shadow and many more. Additionally, he has many Warhammer novels to his name, and the Warhammer Crime novel Bloodlines. Chris lives and works in Bradford-on-Avon, in south-west England.