Kindred series (V. C. Andrews)

Seventeen-year-old Lorelei Patio is the adopted daughter of two-hundred-year-old vampire Sergio Patio. She never realized why her family has had to move so often or why she is not permitted to get too friendly with other young people. In fact, except for one shocking moment that seemed more like a dream, Lorelei never fully realized who and what her father was nor what her sisters were brought up to do for him. But one day, that all changed. Sergio's...