Bookaday: Coexist: Keegan's Chronicles by Julia Crane

YA

Sixteen-year-old Keegan is struggling to keep her huge secret from her friends--she's an elf, descended from a long line of elves that live in secrecy alongside humans.

In elfin society, mates are predetermined but not allowed to meet until they are eighteen. Against tradition, Keegan's brother Thaddeus told her Rourk's name because his visions warned him she'd need Rourk's protection,