David Guymer's work for Warhammer Age of Sigmar includes the novels Hamilcar: Champion of the Gods and The Court of the Blind King, the audio dramas The Beasts of Cartha, Fist of Mork, Fist of Gork, Great Red and Only the Faithful. He is also the author of the Gotrek & Felix novels Slayer, Kinslayer and City of the Damned and the Gotrek audio dramas Realmslayer and Realmslayer: Blood of the Old World. For The Horus Heresy he has written the novella Dreadwing, the Primarchs novel Ferrus Manus: Gorgon of Medusa, and for Warhammer 40,000 The Eye of Medusa, The Voice of Mars and the two Beast Arises novels Echoes of the Long War and The Last Son of Dorn. He is a freelance writer and occasional scientist based in the East Riding, and was a finalist in the 2014 David Gemmell Awards for his novel Headtaker.

Robbie MacNiven is a Highlands-born History graduate from the University of Edinburgh. He has written the Warhammer Age of Sigmar novel Scourge of Fate and Gotrek Gurnisson novella The Bone Desert, as well as the Warhammer 40,000 novels Blood of Iax, The Last Hunt, Carcharodons: Red Tithe, Carcharodons: Outer Dark and Legacy of Russ. His short stories include ‘Redblade’, ‘A Song for the Lost’ and ‘Blood and Iron’. His hobbies include re-enacting, football and obsessing over Warhammer 40,000.

Rob Sanders is the author of the Horus Heresy novellas Cybernetica and The Serpent Beneath, the latter of which appeared in the New York Times bestselling anthology The Primarchs. His other Black Library credits include the The Beast Arises novels Predator, Prey and Shadow of Ullanor, the Warhammer 40,000 titles Sons of the Hydra, Skitarius, Tech-Priest, Legion of the Damned, Atlas Infernal and Redemption Corps and the audio drama The Path Forsaken. He has also written the Warhammer Archaon duology, Everchosen and Lord of Chaos, along with many short stories for the Horus Heresy and Warhammer 40,000. He lives in the city of Lincoln, UK.