Heaven's key. Hell's daughter. Their everything. I always thought being half-angel, half-demon was complicated enough. Add in four devoted hellhound protectors who've awakened feelings I never thought possible, and my life is anything but simple. Now I've discovered I'm the only one who can close the gates of Hell permanently-but doing so means traveling to Heaven itself, where most angels want me dead. With my loyal hellhounds by my side, newly bonded to me in ways that defy both Heaven and Hell, I'll have to embrace both sides of my nature to save the world. But when ancient powers arise and threaten everything I hold dear, will our love be enough to overcome the forces trying to tear us apart?