Mike Carey has written extensively in the comics field, where his credits include Lucifer, Hellblazer, X-Men,and The Unwritten, which was nominated for both the Eisner and Hugo Awards. He is also the author of the Felix Castor series, and has coauthored two fantasy novels, The Steel Seraglio and The House of War and Witness,with his wife, Linda, and daughter, Louise. Carey is also the author of the novel The Girl with All the Gifts under the name M. R. Carey . He is currently writing a screenplay, Silent War,for Slingshot Studios and Intrepid Pictures.

Linda Carey is a teacher, writer, and fantasy enthusiast. She taught in schools for twenty years and is currently the head of education at Keats House in Hampstead. She has coauthored two fantasy novels, The Steel Seraglio and The House of War and Witness,with her husband, Mike, and daughter, Louise. She has also written a young adult trilogy, Darkest Age, under the pseudonym A. J. Lake.

Louise Carey read English at University College, Oxford, and holds a master's degree in psychology from Oxford Brookes. She has been writing since the age of fifteen, when she coauthored the graphic novel Confessions of a Blabbermouth with her father, Mike. She has since cowritten two fantasy novels with her parents, The Steel Seraglio and The House of War and Witness. She currently works as a writer and editor, dividing her time between freelance projects and the Dungeons & Dragons blog Tabletop Tales, which she runs with her partner. Her debut trilogy of novels has just been commissioned by Gollancz, with the first installment, Inscape, due out in January 2021.