Impossible series

Lucy is seventeen when she discovers that she is the latest recipient of a generations-old family curse that requires her to complete three seemingly impossible tasks or risk falling into madness and passing the curse on to the next generation. Unlike her ancestors, though, Lucy has family, friends, and other modern resources to help her out. But will it be enough to conquer this age-old evil? A beautifully wrought modern fairy tale from master storyteller...

Phoebe, a member of the wealthy Rothschilds family, befriends Mallory, an awkward new girl in school, and the two become as close as sisters, but Phoebe does not know that Mallory is a faerie, sent to the human world to trap the ordinary human girl into fulfilling a promise made by her ancestor Mayer to the queen of the faeries.