From Wikipedia, this is the first of a series of ten gay pulp fiction novels published under the pseudonym of Don Holliday. The original nine were written by Victor J. Banis between 1966 and 1968; a tenth by an uncertain author appeared in 1971. The series first emerged during a period when gay paperback titles began spoofing popular genre fiction. As such, they are part of the great gay paperback explosion that "catered to most every taste in men's genre fiction," including detective stories and spy thrillers. According to Banis, the series was inspired by the characters Batman and Robin, and is a spoof of the James Bond series and the television show The Man from U.N.C.L.E.