M.J. Arlidge has worked in television for the last twenty years, specialising in high-end drama production, including prime-time crime serials Silent Witness, Torn, The Little House and, most recently, the hit ITV show Innocent. In 2015 his audiobook exclusive Six Degrees of Assassination was a number-one bestseller. His debut thriller, Eeny Meeny, was the UK's bestselling crime debut of 2014 and has been followed by ten more DI Helen Grace thrillers - all Sunday Times bestsellers.
Lisa Hall is the bestselling author of six psychological thrillers and the Hotel Hollywood time-slip murder mystery series. Her debut novel Between You and Me was a Kindle UK number one bestseller, sitting in the top spot for over four weeks. Lisa has a First Class Honours degree in English Literature and Creative Writing. She lives in Kent with her husband and their three children. Readers can follow Lisa on Twitter @LisaHallAuthor