Malachi Brendan Martin (Irish: Maolsheachlann Breandán Ó Máirtín; July 23, 1921 - July 27, 1999), occasionally writing under the pseudonym Michael Serafian, was an Irish Catholic priest and writer on the Catholic Church. Originally ordained as a Jesuit priest, he became Professor of Palaeography at the Vatican's Pontifical Biblical Institute. From 1958 he served as secretary to Cardinal Bea during preparations for the Second Vatican Council.
Disillusioned by reforms, he asked to be released from certain of his Jesuit vows in 1964 and moved to New York City, where he later became an American citizen.
His 17 novels and non-fiction books were frequently critical of the Catholic Church, which he believed had failed to act on the third prophecy revealed by the Virgin Mary at Fátima. Among his most significant works were The Scribal Character of The Dead Sea Scrolls (1958) and Hostage To The Devil (1976) which dealt with satanism, demonic possession, and exorcism. The Final Conclave (1978) was a warning against alleged Soviet spies in the Vatican.
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