Commander 'Buster' Crabb, a British naval frogman, disappeared whilst undertaking an underwater 'spying mission' involving the Soviet cruiser Ordzhonikidze in 1956. Just over a year after he disappeared, a body washed up headless and handless near Portsmouth. The establishment took charge of the body and, at an inquest, declared it to be Crabb. However, vital evidence was omitted and key witnesses not called. It's now known that it was not Crabb who was buried in Portsmouth. The problem for the establishment was that Crabb worked for the then head of the Royal Navy, Lord Mountbatten. At the time, US government security agencies had alleged that Mountbatten was doing 'unofficial' business with the Soviet Union. This, UK officials believed, was a valid reason for Crabb's story to be held secret until 2056 - an unprecedented 100 years. The FBI and CIA state that it is in the interests of US National Security not to make available any documentation or information, and applications to the KGB by the authors remain unanswered. However, for thirty years Admiral Gennadiy Zakharov trained Spetsnaz troops in Naval sabotage and states that Crabb was in the Eastern Bloc at that time. Sir Percy Silitoe, former head of MI5 also states that the department had a file that proved Crabb was in the Soviet Union. The story also involves the British ruling class and Royalty. It is a tale of illegal activities, art and currency smuggling, Nazi looted gold and treasure, homosexual blackmail, threats and mysterious deaths. The authors and witnesses have been subjected to government surveillance, mail interception and telephone tapping both by the UK authorities and INTERPOL. Following publication of the authors' previous book Frogman Spy, attempts were made to kill both a researcher and a vital witness. This is the murky world of what the establishment does not want you to know.