Night's Heart — J.M. Howard

Sara has lived the childhood that most can only dream of, at least until the secret of her origin tears her world apart, especially when her mother goes missing and not long after she is pursued by a vampire who works for her father, Count Vladimir Von Drake. Can she resist his temptation and solve the mystery of how she could have a father was has been a vampire for over 7,000 years? And what will she do when the world's most known Vampire Hunter, Julia Wellings, shows up at her door with a mission to kill her?