Mistress of the storm - Melanie Welsh

Verity Gallant has always struggled to fit in. Outshone by her perfect sister and tormented by her schoolmates, she knows there is nothing special about her.
But everything changes when theStormdocks at the quiet harbour town of Wellow, and Verity receives an ancient book from a mysterious stranger. It tells the chilling story of the Mistress of the Storm - a story that has been kept from Verity all her life.
Suddenly Wellow is stirring with long-hidden secrets and bitter rivalries. As dark clouds roll menacingly above and Verity begins to uncover the truth about her family's past, she becomes dangerously entangled in a web of dark magic and powerful revenge.