House of Vampires 8: The Book of Blair by Samantha Snow

If someone asked Blair Quinn who her inspirations were, she’d probably name Audrey Hepburn for her poise, Marilyn Monroe’s style, and her cousin Lorena’s grit and bravery. In her mind, no one is braver than Lorena, and she aims to be just like her.
But what she didn’t ask for was all of her cousin’s problems.
And when an explosion sets off what could be considered the New Age Order, Blair’s life quickly consists of hiding from assassins, saving her friends, and fighting back the powers of darkness.