David Annandale is the author of the Warhammer Horror novel The House of Night and Chain and the novella The Faith and the Flesh, which features in the portmanteau The Wicked and the Damned. His work for the Horus Heresy series includes the novels Ruinstorm and The Damnation of Pythos, and the Primarchs novels Roboute Guilliman: Lord of Ultramar and Vulkan: Lord of Drakes. For Warhammer 40,000 he has written Warlord: Fury of the God-Machine, the Yarrick series, and several stories involving the Grey Knights, as well as titles for The Beast Arises and the Space Marine Battles series. For Warhammer Age of Sigmar he has written Neferata: Mortarch of Blood and Neferata: The Dominion of Bones. David lectures at a Canadian university, on subjects ranging from English literature to horror films and video games.

Josh Reynolds’ extensive Black Library back catalogue includes the Horus Heresy Primarchs novel Fulgrim: The Palatine Phoenix, and three Horus Heresy audio dramas featuring the Blackshields. His Warhammer 40,000 work includes the Space Marine Conquests novel Apocalypse, Lukas the Trickster and the Fabius Bile novels. He has written many stories set in the Age of Sigmar, including the novels Shadespire: The Mirrored City, Soul Wars, Eight Lamentations: Spear of Shadows, the Hallowed Knights novels Plague Garden and Black Pyramid, and Nagash: The Undying King. He has written the Warhammer Horror novel Dark Harvest, and novella The Beast in the Trenches, featured in the portmanteau novel The Wicked and the Damned. He has recently penned the Necromunda novel Kal Jerico: Sinner's Bounty. He lives and works in Sheffield.