Rumors about the bigamy of King George V, the theft of the regalia of the Order of St. Patrick in 1907, the strange circumstances of the death of the French President Faure... All these dramatic collisions are historical facts, not fiction. “It would be surprising,” notes Dr. Watson, “if Scotland Yard did not use the talents of Sherlock Holmes here too.” This book tells the story of the role the great detective played in the investigation of major crimes and sensitive situations that, if made public, would cause considerable damage to the reputation of the royal family and the government, as well as disrupt the order and tranquility of the country. Dr. Watson's manuscript, completed shortly after Holmes's death, lay under lock and key for a long time in the state archives on Chancery Lane. And only now, seventy years later, we can finally get acquainted with the secret investigations of Sherlock Holmes.