Also writes as Will Peterson with Peter Cocks. Mark Billingham was born and brought up in Birmingham. Having worked for some years as an actor and more recently as a TV writer and stand-up comedian his first crime novel was published in 2001. Mark lives in North London with his wife and two children.

Sophie Hannah is an internationally bestselling writer of psychological crime fiction, published in 27 countries. In 2013, her latest novel, The Carrier, won the Crime Thriller of the Year Award at the Specsavers National Book Awards. Two of Sophie’s crime novels, The Point of Rescue and The Other Half Lives, have been adapted for television and appeared on ITV1 under the series title Case Sensitive in 2011 and 2012. In 2004, Sophie won first prize in the Daphne Du Maurier Festival Short Story Competition for her suspense story The Octopus Nest, which is now published in her first collection of short stories, The Fantastic Book of Everybody’s Secrets. Sophie has also published five collections of poetry. Her fifth, Pessimism for Beginners, was shortlisted for the 2007 T S Eliot Award. Her poetry is studied at GCSE, A-level and degree level across the UK. From 1997 to 1999 she was Fellow Commoner in Creative Arts at Trinity College, Cambridge, and between 1999 and 2001 she was a fellow of Wolfson College, Oxford. She is forty-one and lives with her husband and children in Cambridge, where she is a Fellow Commoner at Lucy Cavendish College. She is currently working on a new challenge for the little grey cells of Hercule Poirot, Agatha Christie’s famous detective.

Sara grew up in London but for the last sixteen years has lived in Derby with her partner and their two children. Writing is a newly discovered passion for Sara who published her first Paranormal Romance "Samsara" in March 2011. She is currently working on her second novel, the first in her Bellwether Blood Witches Series "Spellbound" which will be published in April 2012. Connect with Sara through Goodreads or on Twitter: https://twitter.com/#!/Buttaflii Happy Reading :)

James Delargy was born and raised in Ireland but lived in South Africa, Australia and Scotland, before ending up in semi-rural England where he now lives. He incorporates this diverse knowledge of towns, cities, landscape and culture picked up on his travels into his writing. He would like to complete a round-the-world series of novels (if only for the chance to indulge in more on-the-ground research).​ James is currently working on another novel set in Western Australia.

Val McDermid is a No. 1 bestseller whose novels have been translated into more than thirty languages, and have sold over eleven million copies. She has won many awards internationally, including the CWA Gold Dagger for best crime novel of the year and the LA Times Book of the Year Award. She was inducted into the ITV3 Crime Thriller Awards Hall of Fame in 2009 and was the recipient of the CWA Cartier Diamond Dagger for 2010. In 2011 she received the Lambda Literary Foundation Pioneer Award. She writes full time and divides her time between Cheshire and Edinburgh.