Opposition — Jennifer L. Armentrout

Katy knows the world changed the night the Luxen came. She can't believe Daemon welcomed his race or stood by as his kind threatened to obliterate every last human and hybrid on Earth. But the lines between good and bad have blurred, and love has become an emotion that could destroy her--could destroy them all.

Daemon will do anything to save those he loves, even if it means betrayal. They must team with an unlikely enemy if there is any chance of surviving the invasion. But when it quickly becomes impossible to tell friend from foe, and the world is crumbling around them, they may lose everything--even what they cherish most--to ensure the survival of their friends...and mankind.