Here is the blurb from Amazon.
Helen Hamilton has spent her entire sixteen years trying to hide how different she is—no easy task on an island as small and sheltered as Nantucket. And it's getting harder. Nightmares of a desperate desert journey have Helen waking parched, only to find her sheets damaged by dirt and dust. At school she's haunted by hallucinations of three women weeping tears of blood . . . and when Helen first crosses paths with Lucas Delos, she has no way of knowing they're destined to play the leading roles in a tragedy the Fates insist on repeating throughout history.