Book 1: Study in Scarlett
Scarlett is a "Null"—a rare anomaly who absorbs magic instead of wielding it. In an elite academy where power is everything, she is a target. But she isn't alone. Three dangerous heirs to ancient monster families have set their sights on her. To survive the semester, she must navigate a deadly curriculum of blood oaths and forbidden rituals. But at Obsidian Marrow, the greatest danger isn't the exams—it's the hunger of the men who refuse to let her go.
Book 2: Tithe of the Sovereign
The secret of Scarlett's lineage is out, and the price of safety is a blood tithe she isn't sure she can pay. As the shadow of the Sovereign looms over the academy, Scarlett's bond with her three monsters deepens into something far more dangerous than magic. In the shadow realm, secrets are a currency, and Scarlett is about to find out just how much she's worth to the men who would burn the world to keep her.
Book 3: Ashes of the Vow
Magic is collapsing, and the five warring families are ready to tear the world apart to claim what remains. Scarlett is caught in the crossfire, her own developing powers threatening to consume her. With the help of a monster who shouldn't exist and the rivals she once called enemies, she must rise from the ashes of her old life to stop a conspiracy that goes deeper than the foundations of the academy itself.
Book 4: What the Nothing Holds
The voids are calling, and the Maw is hungry. In the epic finale of the Iron Vow Society, Scarlett must choose between the world she was born into and the family she has fought to keep. When the nothingness threatens to swallow everything she loves, Scarlett will show them that a Null doesn't just absorb magic—she defines it. The vows are broken, the masks are off, and the villains have finally found their queen.
The Iron Vow Society: The Complete Omnibus
Enter the halls of Obsidian Marrow Academy and never look back. This massive collection includes all four books in the Iron Vow Society series: Study in Scarlett, Tithe of the Sovereign, Ashes of the Vow, and What the Nothing Holds. Follow Scarlett's entire journey from anomaly to queen in over 1,500 pages of dark academy, high-heat monster romance, and blood oaths that can never be broken.