Serafina D’Angelis should have died with her father.Seven years ago, the car crash that killed Chicago’s most feared mob boss left her scarred but breathing—and hungry for vengeance. By day, she runs adrenaline-fueled tours to feed her death wish. By night, she hunts the vampires of her father’s empire, dismantling his criminal network piece by piece.Until someone sabotages her parachute.Serafina crashes through the glass roof of Chicago’s most dangerous secret—Crimson, a vampire-owned nightclub where mortals are currency and blood is law. There, she comes face-to-face with Lucien Moretti, the Council Prime’s legendary enforcer.He should kill her on sight.Instead, he spares her life… and claims her as his.Lucien knows what Serafina doesn’t: she carries a bloodline mark that makes her his fated mate—and the key to the Heart of Shadows, an ancient weapon powerful enough to destroy his entire race. The moment her blood touches his, an unbreakable bond is forged, binding them together even as centuries-old orders demand her death.Now hunted by vampires, Serafina must survive a city where every shadow hides a predator—and decide if she can trust the monster who might have a hand in her father's death.But Lucien is keeping his own secrets, and the closer they get, the more dangerous the truth becomes. Because if Serafina unlocks the power inside her, she could end the war between humans and vampires forever…Or ignite one that burns the world to ash.When love is bound in blood and every truth cuts like a knife—who will survive when the shadows choose a side?