Richard III's murder of his two young nephews, the "Princes in the Tower" has long been questioned, and even contemporary sources make clear this was rumour only, and conflicts much with Richard III's character as a ruler. It has nevertheless often been treated as fact, and has been the source of debate for over 500 years. This book for the first time gathers together the evidence, drawing together an immense amount of historical material, new research and sources from contemporary to modern times. Among this is the discovery of a highly significant tradition preserved in the Tyrell family, which encouraged the author to investigate papers and wills not examined before, including information about the diplomatic and intelligence services involved. As a result, a new interpretation of the case emerges, which fully realizes the characters involved, their political allegiances and psychological motivations. It provides a key to understanding one of the most baffling murder mysteries in history, a study in power politics which suggests a conspiracy to conceal the truth.