This is the 12th book out of a 20 (or 21) book series, and it is one of my favourites in the series - a series which I believe to be incomparable. O'Brian manages to turn a tale of derring-do on the high seas and some politicking and love-troubles on land, into a story that touches the soul.
It starts deep in the doldrums. Captain Aubrey has been dismissed the service: thrown out of the Royal Navy, his life. But his particular friend, the surgeon Dr Stephen Maturin, has bought the frigate *Surprise*, and they - and a prime crew of old Surprise hands and shady Shelmerstonian privateers and smugglers - are off on a private mission, as a Letter of Marque. Essentially, as a privateer. For aficionadoes this is all they could wish for: we meet all our old friends, Pullings, Killick, Bonden, Plaice, even Babbington and Mowett make an appearance: and, of course, the lovely *Surprise* itself, no longer H.M.S. but still her old self, and a real personality. There is heartache; there is extreme tension; there are ruses; and there is the interplay between old friends Jack and Stephen, between them and their music, and between the ship and the elements. This is old ground, lovingly rediscovered and described with the Master's hand. There is no-one to touch O'Brian, and he is in full flow here - little touches of humour, painful personal moments, and descriptions of life at sea to touch your soul. Even if, like me, you are a landsman. On land we meet again Sir Joseph Blaine, Mrs Broad of the Grapes, and even the butcher's dog. There are enchanting scenes at Ashgrove Cottage, and some good life at Shelmerston, that freelancing Devon port.
And there is long-drawn-out tension, something O'Brian is particularly good at - on and on it goes, and it keeps your nerves as taut as the rigging in a full-blown gale. Tension during two very important cutting-out expeditions: one for the Diane in France, one for Diana in Sweden. This is O'Brian at the peak of his form, and this is a wonderful book.