The Devil to Pay — David Donachie

Faced with a ship in need of repair, enemy attacks and the threat of wily Admiral Hotham, John Pearce is sailing into danger.
Meanwhile Ralph Barclay is on his way to the Mediterranean. Thinking his wife still with Pearce and that he can repair his marriage by rescuing her, he sails in pursuit, Hotham half-hoping he suffers the same fate as the admiral has in store for Pearce.
Can John Pearce fight to first save himself and his charges from captivity and then to be free from the enemy? It is a battle that will require all of his wits.