Malachi has written extensively on the Northern Ireland Troubles, cultural change, and religion in both his journalism and his books. His latest book, The Year of Chaos, will be published in 2021 (Atlantic Books). A columnist for the Belfast Telegraph, Malachi features routinely as a political commentator on BBC N. Ireland’s The Nolan Show, He has published one novel, Terry Brankin Has A Gun, in 2020, and several short stories.