- Ally d'Aplièse and her sisters gather at their childhood home, a castle on Lake Geneva, after the death of their father, an enigmatic millionaire. - Ally, the second sister, is a navigator and musician, known for her tempestuous temperament. - A new tragedy drives her to follow the clues left by her father, leading her to Norway. - In Norway, Ally discovers the story of a family of virtuosos with hidden secrets, celebrated for their talent a century ago. - The Storm Sister is the second volume of the series The Seven Sisters, which has captivated 20 million readers worldwide. - Lucinda Riley, through these unforgettable characters and plots full of drama and love, has created a new literary genre.