Sharpe, wrongly accused of murdering La Marquesa's husband after an interrupted duel, goes on the run to clear his name and find the real culprit. Along the way he has to rescue La Marquesa from a convent and a distinctly unpatriotic partisan, and escape from the French, who want to send him into the depths of France as a prisoner of war. Tempted though he is to spend the rest of the war with La Marquesa, he knows he has to get back to the army and his beloved regiment with his knowledge of the treachery cooked up by Major Ducos and a very clever Spanish priest. He escapes as the French fortress at Burgos explodes, and finds his way back to the South Essex in the midst of the Battle of Vitoria. Believing him to be dead, his regiment are naturally startled to see him, though as they have just lost their commanding officer, they are also very relieved to have him to lead them. In the aftermath of the battle Sharpe has to save La Marquesa once again from the treacherous El Maratife, and along the way Harper picks up enough gold and jewels from the French baggage to make his own and Sharpe's fortunes.
This is a fantastic novel, the battle scenes described with Cornwell's usual flair, and all the action in between wonderfully fast-paced and engaging. A brilliant read!