Mari Hannah was born in London and moved north as a child. Sponsored by the Home Office, she graduated from Teesside University before becoming a Probation Officer, a career cut short when she was injured while on duty. Thereafter, she spent several years working as a film/television scriptwriter. During that time she created and developed a number of projects, most notably a feature length film and the pilot episode of a crime series for television based on the characters in her book, the latter as part of a BBC drama development scheme. She lives in Northumberland with her partner, an ex-murder detective. In 2010, she won the Northern Writers’ Award. She has had five novels published: The Murder Wall (which won the Polari prize), Settled Blood, Deadly Deceit, Monument to Murder and Killing for Keep. She was shortlisted for the 2014 CWA Dagger in the Library, which honours an author’s whole body of work to date.