Having been given very few details Karl Steiner is tasked with a mission to foil a plot to assassinate Diana Princess of Wales. His employer, Sir Gerald Ainsley, suspects who the instigators are and discovers, that Diana is simply a convenient pawn being used in an exceptionally long game to challenge the British Establishment. With his meticulous skill and knowledge Steiner spends a year preparing for a premeditated attempt planned for 1995, but where he initially succeeds, conflicting forces thwart his efforts and a further attempt is realised in 1997.

A cunning suspense novel, OPERATION RHOMBUS spans almost three decades and tells the story of a determined attempt to bring down the British establishment. Princess Diana is identified as the possible catalyst. OPERATION RHOMBUS focuses on the men who would dare risk such an attempt, their perceived transgressions and the men with the skills to carry it out. Interspersing characters real and imagined, mixing theory and fact, describing methods in authentic detail and blurring all lines of plausibility, just who is JD? And who are the men behind him?