Ian Sansom is the author of Paper: An Elegy and the Mobile Library Mystery series of novels. He is also a frequent contributor to the Guardian and the London Review of Books, and a regular broadcaster on BBC Radio 3 and Radio 4.

The Sussex Murders is the fifth in his County Guide series, following The Norfolk Mystery, Death in Devon, Westmorland Alone and Essex Poison.

Jo Baker is the author of the acclaimed and bestselling Longbourn (which is due for release as a feature film in 2020) and A Country Road, A Tree. Her new novel, The Body Lies, is both a rivetting cat-and-mouse game and a disarming exploration of sexual politics. It has been optioned for TV. Jo Baker lives with her family in Lancashire.

Bernie McGill was born and raised in Northern Ireland and attended Queen's University, Belfast. Her first novel, The Butterfly Cabinet, was published by Headline Review in 2011.

Bernie is also the author of Sleepwalkers, a collection of short fiction (shortlisted for the Edge Hill Short Story Prize) and a contributor to three acclaimed anthologies of Irish women writers, The Long Gaze Back, The Glass Shore and Female Lines (New Island, 2015, 2016 & 2017). She has numerous theatre credits to her name.

Bernie lives in Portstewart, Northern Ireland, with her family.

Ian McDonald was born in 1960 in Manchester, England, to an Irish mother and a Scottish father. He moved with his family to Northern Ireland in 1965. He is the author of Luna: New Moon and Luna: Wolf Moon. He has won the Locus Award, the British Science Fiction Association Award, and the John W. Campbell Memorial Award. He now lives in Belfast.

Sam Thompson was born in 1978. His first novel, Communion Town, was longlisted for the Booker Prize in 2012.

Jott is his second novel.

Michelle Gallen was born in Tyrone in the 1970s and grew up during the Troubles a few miles from the border. She studied English Literature at Trinity College Dublin and Publishing at Stirling University. She has had work published in the Stinging Fly, Mslexia and others and won the Orange/NW Short Story Award.

Gebler was born in Dublin, the elder son of the Irish writers Ernest Gebler and Edna O'Brien. He is a novelist, biographer, playwright and teacher, frequently working with prisoners in Northern Irish jails. His novel The Dead Eight, based on events that took place in rural Tipperary in 1940, was described by Julian Evans as having a "Swiftian understanding of the world's secret machinations". His other novels include How to Murder a Man (1998) and A Good Day For A Dog. Driving through Cuba: An East-West Journey was published in 1988, and his other non fiction books include The Glass Curtain, about the sectarian divisions of Belfast, and Father and I: a Memoir, a book about his difficult relationship with his distant father.