Jack Aubrey returns from his duties protecting whalers off South America and is persuaded by a casual acquaintance to make investments in the City on the strength of supposedly certain information. This innocent decision ensnares him in the London criminal underground and in government espionage - the province of his friend Stephen Maturin. Is Aubrey's humiliation and the threatened ruin of his career a deliberate plot?

Shipwrecked on a remote island in the Dutch East Indies, Captain Aubrey, surgeon and secret intelligence agent Stephen Maturin, and the crew of the Diane fashion a schooner from the wreck. A vicious attack by Malay pirates is repulsed, but the makeshift vessel burns, and they are truly marooned. Their escape from this predicament is one that only the whimsy and ingenuity of Patrick O Brian or Stephen Maturin could devise.

It is still the War of 1812 and Jack Aubrey - with his tetchy, sardonic friend Stephen Maturin - has set course across the South Atlantic to intercept a powerful American frigate outward bound to play havoc with the British whaling trade. If they do not come up with her before she rounds the Horn, they must follow her into the Great South Sea and as far across the Pacific as she may lead them.

Captain Jack Aubrey sails away from the hated Australian prison colonies in his favourite vessel the Surprise, pondering on middle age and sexual frustration. He soon becomes aware that he is out of touch with the mood of his ship: to his astonishment he finds that in spite of a lifetime's experience he does not know what the foremost hands or even his own officers are thinking.

At the opening of a voyage filled with disaster and delight, Jack Aubrey and Stephen Maturin are in pursuit of a privateer sailing under American colours through the Great South Sea. Stephen's objective is to set the revolutionary tinder of South America ablaze to relieve the pressure on the British government which has blundered into war with the young and uncomfortably vigorous United States. The shock and barbarity of hand-to-hand fighting are sharpened by O'Brian's exact sense of period, his eye for landscape and his feel for a ship under sail.

Having survived a long and desperate adventure in the Great South Sea, Captain Jack Aubrey and Stephen Maturin return to England to very different circumstances. For Jack it is a happy homecoming, at least initially, but for Stephen it is disastrous: his little daughter appears to be autistic, incapable of speech or contact, while his wife, Diana, unable to bear this situation, has disappeared, her house being looked after by the widowed Clarissa Oakes.

Life ashore may once again be the undoing of Jack Aubrey in The Yellow Admiral, Patrick O'Brian's best-selling novel and eighteenth volume in the Aubrey/Maturin series. Aubrey, now a considerable though impoverished landowner, has dimmed his prospects at the admiralty by his erratic voting as a member of Parliament; he is feuding with his neighbor, a man with strong navy connections who wants to enclose the common land between their estates.

Jack Aubrey and Stephen Maturin, veterans of many battles, return in this novel to the seas where they first sailed as shipmates. But Jack is now a senior captain, commanding a line-of-battle ship sent out to reinforce the squadron blockading Toulon, and this is a longer, harder, colder war than the dashing frigate action of his early days.... A sudden turn of events takes him and Stephen off on a hazardous mission to the Greek islands. All his old skills of seamanship - and luck when fighting against odds - come triumphantly into their own as the story concludes with some fierce and thrilling action.

Napoleon, escaped from Elba, pursues his enemies across Europe like a vengeful phoenix. If he can corner the British and Prussians before their Russian and Austrian allies arrive, his genius will lead the French armies to triumph at Waterloo. In the Balkans, preparing a thrust northwards into Central Europe to block the Russians and Austrians, a horde of Muslim mercenaries is gathering.

Napoleon has been defeated at Waterloo, and the ensuing peace brings with it both the desertion of nearly half of Captain Aubrey's crew and the sudden dimming of Aubrey's career prospects in a peacetime navy. When the Surprise is nearly sunk on her way to South America - where Aubrey and Stephen Maturin are to help Chile assert her independence from Spain - the delay occasioned by repairs reaps a harvest of strange consequences.

Captain Jack Aubrey, RN, arrives in the Dutch East Indies to find himself appointed to the command of the fastest and best-armed frigate in the Navy. He and his friend Stephen Maturin take passage for England in a despatch vessel. But the War of 1812 breaks out while they are en route. Bloody actions precipitate them both into new and unexpected scenes where Stephen's past activities as a secret agent return on him with a vengeance.

Commissioned to rescue Governor Bligh of Bounty fame, Captain Jack Aubrey and his friend and surgeon Stephen Maturin sail the Leopard to Australia with a hold full of convicts. Among them is a beautiful and dangerous spy - and a dangerous disease which decimates the crew.

In The Mauritius Command, Captain Jack Aubrey is ashore on half-pay without a command until his friend, occasional intelligence agent Stephen Maturin, arrives with secret orders for Aubrey to take a frigate to the Cape of Good Hope under a Commodore's pennant. But the difficulties of carrying out his orders are compounded by two of his own captains: one a pleasure-seeking dilettante, the other liable to provoke the crew to mutiny. Based on an actual campaign of 1810 in the Indian Ocean.

H.M.S. Surprise, the third in O'Brian's acclaimed Aubrey-Maturin series, follows the variable fortunes of Captain Jack Aubrey's career in Nelson's navy, as he attempts to hold his ground against admirals, colleagues, and the enemy, and accepts a commission to convey a British ambassador to the East Indies. The voyage leads him and his friend Stephen Maturin to the strange sights and smells of the Indian subcontinent, and through the archipelago of Spice Islands where the French have superiority.

This tale begins with Jack Aubrey arriving home from his exploits in the Mediterranean to find England at peace following the Treaty of Amiens. He and his friend Stephen Maturin, surgeon and secret agent, begin to live the lives of country gentlemen, hunting, entertaining, and enjoying amorous adventures. Their comfortable existence, however, is cut short when Jack is overnight reduced to a pauper with enough debts to keep him in prison for life. He flees to the continent to seek refuge.