Sir Hugh Abercrombie very neatly sums up Bartholomew Hoare's odd position in King George III's Royal Navy.Because a throat injury suffered in the service of the Crown in the war with France has left Hoare fit to do no more than whisper, he is unable to command a ship. To a man raised in a navy family, this is a tragedy.But Hoare's quick brain and extraordinary perspicacity has so impressed his superiors that he has been entrusted not only with the...