The Veil — Cory Putman Oakes

Seventeen-year-old Addison Russell is in for a shock when she discovers that she can see the invisible world of the Annorasi. Suddenly, nothing is as it appears to be--the house she lives in, the woman who raised her, even the most beautiful boy in town all turn out to be more than what they seem. And when this strange new world forces Addy to answer for a crime that was committed long ago, by parents she has never known, she has no choice but to trust Luc, the mysterious Annorasi who has been sent to protect her. Or so he says . . .