Adrian Tchaikovsky is the author of the acclaimed Shadows of the Apt fantasy series and the epic science fiction blockbuster Children of Time.

He has won the Arthur C. Clarke Award, a British Fantasy Society Award, and been nominated for the David Gemmell Legend Award.

In civilian life he is a lawyer, gamer and amateur entomologist.

Matt Smith is one of Black Library's newest authors, and the Warhammer 40,000 short story 'In Service Eternal' is his first. He is based in Norwich and spends his spare time working on his Raven Guard army and training in martial arts.

Steve Lyons’ work in the Warhammer 40,000 universe includes the novellas Engines of War and Angron's Monolith, the Imperial Guard novels Death World, Ice Guard and Dead Men Walking, and the audio dramas Waiting Death and The Madness Within. He has also written numerous short stories and is currently working on more tales from the grim darkness of the far future.

Marc Collins is a speculative fiction author living and working in Glasgow, Scotland. He is the writer of the Warhammer Crime novel Grim Repast, as well as the short story ‘Cold Cases’, which featured in the anthology No Good Men.

For Warhammer 40,000 he has written a number of short stories, including ‘Duty Unto Death’, ‘The Crueltymaker’s Kingdom’ and ‘The Death of the Prophet’. When not dreaming of the far future he works in Pathology with the NHS.

Gareth Hanrahan's three-month break from computer programming to concentrate on writing has now lasted fifteen years and counting. He's written more gaming books than he can readily recall, by virtue of the alchemical transmutation of tea and guilt into words. He lives in Ireland with his wife and three children.

Mike Brooks is a speculative fiction author who lives in Nottingham, UK.

His work for Black Library includes the Warhammer 40,000 novel Rites of Passage, the Necromunda novella Wanted: Dead, and the short stories ‘The Path Unclear’, ‘A Common Ground’ and ‘Choke Point’. When not writing, he works for a homelessness charity, plays guitar and sings in a punk band, and DJs wherever anyone will tolerate him.

John French is the author of several Horus Heresy stories including the novels The Solar War, Praetorian of Dorn, Tallarn and Slaves to Darkness, the novella The Crimson Fist, and the audio dramas Dark Compliance, Templar and Warmaster. For Warhammer 40,000 he has written Resurrection, Incarnation and Divination for The Horusian Wars and three tie-in audio dramas – the Scribe award-winning Agent of the Throne: Blood and Lies, as well as Agent of the Throne: Truth and Dreams and Agent of the Throne: Ashes and Oaths. John has also written the Ahriman series and many short stories.

Nate Crowley is an SFF author and games journalist who lives in Walsall with his wife, daughter, and a cat he insists on calling Turkey Boy.

He loves going to the zoo, playing needlessly complicated strategy games, and cooking incredible stews. Severed is his third story for Black Library, the others being ‘Empra’ and 'The Enemy of My Enemy'.

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 range 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.

Peter McLean was born near London and grew up in the Norwich alternative scene, alternating dingy nightclubs with studying martial arts and practical magic before settling to a career in corporate IT. His first novels, the Burned Man series, are noir urban fantasy.

Danie Ware is the author of the novellas The Bloodied Rose, Wreck and Ruin and the short story 'Mercy', all featuring the Sisters of Battle. She lives in Carshalton, south London, with her son and two cats and has long-held interests in role-playing, re-enactment, vinyl art toys and personal fitness.