Using the penname Adam Hall, British author Trevor Dudley Smith (better known as Elleston Trevor) wrote 18 popular novels chronicling the exploits of his spy, Quiller. The Quiller Memorandum earned him an Edgar Award from the Mystery Writers of America. Several of his books have made it to the big or small screen, including Flight of the Phoenix (filmed in 1965), Quiller (The Series), and the made-for-TV movie The Penthouse.