But when she falls in love with Bosinney, a penniless architect who utterly rejects the Forsyte values, their affair touches off a series of events which can only end in disgrace and disaster.John Galsworthy tackles his theme of the demise of the upper-middle classes with irony and compassion.

    Sir Nigel Anstruthers crosses the Atlantic to look for a rich wife and returns with the daughter of an American millionaire, Rosalie Vanderpoel. He turns out to be a bully, a miser and a philanderer and virtually imprisons his wife in the house. Only when Rosalie's sister Bettina is grown up does it occur to her and her father that some sort of rescue expedition should take place. And the beautiful, kind and dynamic Bettina leaves for Europe to try and find out why Rosalie has, inexplicably, chosen to lose touch with her family. In the process she engages in a psychological war with Sir Nigel; meets and falls in love with another Englishman; and starts to use the Vanderpoel money to modernize ‘Stornham Court’.The book’s title refers to ships shuttling back and forth over the Atlantic (Frances Hodgson Burnett herself traveled between the two countries thirty-three times, something very unusual then).

    Discussing it, he called the book "a very intimate revelation. . . . I have attempted here to lay bare with the unreserve of a last hour's confession the terms of my relation with the sea, which beginning mysteriously, like any great passion the inscrutable Gods send to mortals, went on unreasoning and invincible, surviving the test of disillusion, defying the disenchantment that lurks in every day of a strenuous life; went on full of love's delight and love's anguish, facing them in open-eyed exultation without bitterness and without repining, from the first hour to the last."