Quinn Callaghan is destined to become the alpha queen, a title she desperately fights against. As the sun is suddenly shrouded in darkness and perpetual twilight spreads across the world like wildfire, everything changes. Vampires rise and their presence stirs fear among humanity. Quinn must forgo her newfound independence and desires to go back home as her pack needs her. Can she defeat those who walk during the night and protect her kind? Or will their dark temptations consume her?