Paul Kearney was born in rural County Antrim, Ireland, in 1967. His father was a butcher, and his mother was a nurse. He rode horses, had lots of cousins, and cut turf and baled hay. He often smelled of cowshit. He grew up through the worst of the 'Troubles' in Northern Ireland, a time when bombs and gunfire were part of every healthy young boy's adolescence. He developed an unhealthy interest in firearms and Blowing Things Up - but what growing boy hasn't? By some fluke of fate he managed to get to Oxford University, and studied Old Norse, Anglo-Saxon and Middle English. He began writing books because he had no other choice. His first, written at aged sixteen, was a magnificent epic, influenced heavily by James Joyce, Samuel Beckett, Robert E Howard, and Playboy. It was enormous, colourful, purple-prosed, and featured a lot of Very Large Swords. His second was rather better, and was published by Victor Gollancz over a very boozy lunch with a very shrewd editor. Luckily, in those days editors met authors face to face, and Kearney's Irish charm wangled him a long series of contracts with Gollancz, and other publishers. He still thinks he can't write for toffee, but others have, insanely, begged to differ. Kearney has been writing full-time for twenty-eight years now, and can't imagine doing anything else. Though he has often tried.

Steven Savile (born October 12, 1969, in Newcastle, England) is a British fantasy, horror and thriller writer, and editor living in Sala, Sweden. Under the Ronan Frost penname (inspired by the hero of his bestselling novel, Silver) he has also written the action thriller White Peak, and as Matt Langley was a finalist for the People's Book Prize.

Simon Guerrier is a British science fiction author and dramatist, closely associated with the fictional universe of Doctor Who and its spinoffs. Although he has written three Doctor Who novels, for the BBC Books range, his work has mostly been for Big Finish Productions' audio drama and book ranges. Guerrier's earliest published fiction appeared in Zodiac, the first of Big Finish's Short Trips range of Doctor Who short story anthologies. To date, his work has appeared in the majority of the Short Trips collections. He has also edited three volumes in the series, The History of Christmas, Time Signature and How The Doctor Changed My Life. The second of these takes as its starting-point Guerrier's short story An Overture Too Early in The Muses. The third anthology featured stories entirely by previously unpublished writers. After contributing two stories to the anthology Life During Wartime in Big Finish's Bernice Summerfield range of books and audio dramas, Guerrier was invited to edit the subsequent year's short story collection, A Life Worth Living, and the novella collection Parallel Lives. After contributing two audio dramas to the series, Guerrier became the producer of the Bernice Summerfield range of plays and books, a post he held between January 2006 and June 2007. His other Doctor Who work includes the audio dramas, The Settling and The Judgement of Isskar, in Big Finish's Doctor Who audio range, three Companion Chronicles and a contribution to the UNIT spinoff series. He has also written a play in Big Finish's Sapphire and Steel range. Guerrier's work is characterised by character-driven humour and by an interest in unifying the continuity of the various Big Finish ranges through multiple references and reappearances of characters. As editor he has been a strong promoter of the work of various script writers from the Seventh Doctor era of the Doctor Who television series