Jenkins, and his novels included titles in the Sir Leonard Wallace series and others in the crime, romance, comedy and thriller genres. Apart from books that he wrote under his own name, he also published under three pseudonyms. In 1933 Confessions of a Scoundrel was published under the pseudonym "Geoffrey Spencer" — the surname used by Smith-Cumming when he rented MI6's headquarters at 2 Whitehall Court. As "Gregory Wilson" Alec wrote The Factory Mystery and The Boxing Mystery for The Modern Publishing Company in 1938. Between 1938 and 1939, as "Michael Chesney", he wrote a trilogy of spy novels of imperial adventure that featured Colonel Geoffrey Callaghan, Chief of Military Intelligence as central character: Callaghan of Intelligence, "Steel" Callaghan, and Callaghan Meets His Fate. What appear to be his last two novels, Chronicles of the Secret Service and Double Masquerade, were published by Herbert Jenkins in 1940. Wilson wrote "forceful, exciting, thrilling, vibrant, vivid, intriguing, daring" stories, according to reviewers in The Telegraph, The Observer, The Scotsman and The Times Literary Supplement. In January 1940 The Observer's reviewer, Maurice Richardson, said Wallace Intervenes: "... is another spy story featuring Hitler in person, if not name. This time he is kidnapped, put in a trunk, and successfully impersonated by Sir Leonard Wallace, Chief of the Intelligence Service. This comes at the end of an exciting love-duel in which one of our younger agents has to seduce a beautiful Austrian Baroness, who fortunately turns out to be on our side all the time". In 2015–16 Allison & Busby re-published nine of Wilson's Wallace of the Secret Service novels. In total, Wilson wrote and published 24 novels and edited three academic books, aside from four unpublished manuscripts. Third marriage and World War II intelligence work A pregnant Dorothy Wilson returned to England in 1933, where her son, Michael Chesney, was born in Paddington. The birth certificate listed the father as Alexander Douglas Chesney Wilson, a Major with the Middlesex Regiment. Crook's research in the Middlesex Regiment's archives did not find a Major by that name. And the only photograph that Michael had of Alec Wilson showed him wearing the uniform of an Officer in one of the Punjab Regiments of the British Indian Army. Alec arrived in London in 1934, but left Dorothy and their baby son and returned to Gladys, his first and still-legitimate wife and his family, who now lived in