All the Pretty Monsters Series by Kristy Cunning
Sheltered from many things in the monster world, Violet lived with the only knowledge that she was a gipsy until she met the four alphas – Vance (Van Helsing), Emit (Werewolf), Damien (Incubus) and Arion (Vampire). Matters were starting to unveil, and regardless of their belief, Violet would be their salvation.