'Double Date With Murder.' is a book that provides the reader with two absorbing, but entirely different stories. - Book 1 introduces 'The Disappearing Detective.' - This engaging story reveals the amazing powers that invisibility can bring to a rich, young investigator whose quest is to solve crimes that appear to be motiveless. Book 2 'Contract, for a Killer' covers the gripping life story of an embittered, ex S.A.S. soldier who's recruited by a secret organisation to track down, and administer a deadly form of justice on criminals that have eluded the system.