Roses In The Wind. The Rose Saga

Seventeen-year-old Alice Rose and her older brother, Andrew, find their mother and father brutally murdered by an unknown maniac and their younger sister, Amy, clinging to life. When Child Protective Services tries to split the three siblings apart, they decide to run away from their hometown of Porterlance, Pennsylvania. On the run, they meet a woman, Rachel Pfister, who claims she's their long-lost aunt and their dead mother's twin sister.
They also learn that their grandfather, Krane Pfister, is an eccentric billionaire/music mogul. Aunt Rachel takes them to live in his mysterious mansion known as Pfister Manor. At first, the siblings are seduced by a new life filled with wealth, privilege, and power. But soon, Alice suspects there is something unholy about Pfister Manor. After a bizarre chain of events, the siblings discover their new family is hiding dark, torrid secrets, and a shadowy sinister force wants to tear the siblings apart, and ultimately, destroy them. What unseen evil lies within Pfister Manor? What unspeakable sins are their family hiding? Who killed their parents and why? Who can they trust?