Somewhat out of Cornwell's usual style, this doesn't contain a single battle - but it does contain a military man or two. Set some time in the late 1810s, after the battle of Waterloo, Captain Ryder Sandman is trying to earn sufficient money to keep his mother and sister after his father shot himself after being found a swindler and forger. He's left the army and is living in a cheep tavern in London. He finds himself offered wages as a temporary employee of the government in order to investigate if a murderer did, in fact, commit the crime and should hang. this isn't due to any qualm of conscience on the part of the Home secretary, more that the Queen has been persuaded to add her name to a petition, so the Home Secretary has to be seen to do something... Ryder (who is, incidentally a very attractive character) goes to see the accused and starts to investigate, assisted by a local tavern wench, a Sergeant and a member of the aristocracy. He gets into a fair number of difficult positions in the week he has to find the truth, some of them physically dangerous. The tale ends as if there was to be a sequel, but I'm not aware of one.