Tempeste has survived much choosing to live on Paris’ streets–scavenging for food, learning survival skills from a deserter whom she paid to attack her in her sleep, and living a life her mother would approve of, one devoid of luxury. But denying oneself of food and proper bedding can stir a madness in the brain. So, when Tempeste witnesses the quick and painless death of the guillotine–the death her mother should have received–she vows to find her mother’s accuser and vivisect his spleen. Quite by accident, Gabriel, the young executioner responsible for Tempeste’s mother’s botched hanging, falls for Tempeste. So, instead of strolling arm-in-arm with a respectable mademoiselle through the gardens of the Palais de l’Égalité, Gabriel finds himself traipsing after an axe-carrying siren through the catacombs and facing off a hostile sans-culottes army. With little choice but to fight, Gabriel determines to win the hearts of the sans-culottes, while Tempeste proves she’s quite adept at swinging the blade. When the pair finally make their way to Tempeste’s sworn enemy, though, a secret is revealed which promises to sever far more than they ever hoped to gain.