The Seven Sisters:

 Maia and her five sisters gather together at their childhood home a fabulous, secluded castle situated on the shores of Lake Geneva having been told that their beloved adoptive father, the elusive billionaire they call Pa Salt, has died.

Each of them is handed a tantalizing clue to their true heritage a clue which takes Maia across the world to a crumbling mansion in Rio de Janeiro in Brazil . . . Eighty years earlier, in the Belle Époque of Rio, 1927, Izabela Bonifacios father has aspirations for his daughter to marry into aristocracy. But Izabela longs for adventure and convinces him to allow her to accompany the family of a renowned architect on a trip to Paris.

In the heady, vibrant streets of Montparnasse, she meets ambitious young sculptor Laurent Brouilly and knows at once that her life will never be the same again. 

The Shadow Sister:

Star D'Apliese is at a crossroads in her life after the sudden death of her beloved father the elusive billionaire, named Pa Salt by his six daughters, all adopted by him from the four corners of the world. He has left each of them a clue to their true heritage, but Star - the most enigmatic of the sisters - is hesitant to step out of the safety of the close relationship she shares with her sister CeCe. In desperation, she decides to follow the first clue she has left, which leads her to an antiquarian bookshop in London, and the start of a whole new world....

The Storm Sister:

Ally is about to compete in one of the world's most perilous yacht races when she hears the news of her adoptive father's sudden, mysterious death. Rushing back to meet her five sisters at their family home, she discovers that her father - an elusive billionaire affectionately known to his daughters as Pa Salt - has left each of them a tantalizing clue to their true heritage.

Ally has also recently embarked on a deeply passionate love affair that will change her destiny forever. But with her life now turned upside down, Ally decides to leave the open seas and follow the trail that her father left her, which leads her to the icy beauty of Norway . . . There, Ally begins to discover her roots - and how her story is inextricably bound to that of a young unknown singer, Anna Landvik, who lived there over a hundred years before and sang in the first performance