There’s no backing away from the rebellion Alex started in Olympus. He cannot give in and let Olympians, otherworldlings, and humans suffer any longer, and now the siren he loves, Lula is at his side. The problem is, Zeus is after her and wants Alex’s pledge of loyalty. But Alex won’t bend. When Alex does the right thing, confessing he knew Lula long before meeting her, she runs… straight into the enemy, Moros', arms. The enemy who has a secret of his own. He’s been creating chaos on Earth to draw out Lula. He wants her to rule Olympus. He demands she become as dangerous as he is. What does a siren with a broken heart do? She becomes apocalyptic.