Fifth of the Cordwainers series.
From the Back Cover
Bridie Marchant had been brought up with every advantage: a wealthy background, a convent education, and a father who eventually willed her a fleet of merchant sailing ships. When she married Paul Marchant it seemed a perfect match, for Paul, owner of a much smaller fleet of ships, could take care both of Bridie and of her business interests.
But slowly Bridie began to have doubts about Paul, about his love, and about his business dealings. When he tried to inflict upon her the greatest insult of all, and also attempted to seize her fortune, Bridie decided she must fight back. With the help of Ellie Hopkins, she sought to trap Paul in a web of his own making. In the dramatic events that followed, both Ellie and Bridie were nearly destroyed before they finally found happiness with the men they loved.
Sea Mistress continues the compelling Cordwainers series, begun in The Shoemaker's Daughter, The Oyster Catchers, Honey's Farm and Arian.