In February 1910, the future Virginia Woolf played the most famous practical joke in British military history. Blackening her face and masquerading as an Abyssinian prince, the young writer and her friends conned their way onto HMS Dreadnought, the Empire's most powerful battleship. The stunt made headlines around the world, embarrassed the Admiralty, and provoked debate in Parliament. But who was the 'girl prince' unidentified at the time, and what...