Camille, a revolutionary's daughter, leads a band of outcasts – a runaway girl, a deserter, an aristocrat in hiding. As the Battalion des Mortes they cheat death, saving those about to meet a bloody end at the blade of Madame La Guillotine. But their latest rescue is not what she seems. The girl's no aristocrat, but her dark and disturbing powers means both the Royalists and the Revolutionaries want her. But who and what is she? In these dangerous days, no one can be trusted, everyone is to be feared. As Camille learns the truth, she's forced to choose between loyalty to those she loves and the future.

Following the thrills and spills of Dangerous Remedy, the Battalion of the Dead return in a dazzling new adventure, set amid the opulence and squalour of 18th-century London and Paris. 1794, London: Camille and Al are desperately hunting Olympe's kidnapper. From the glamorous excesses of the Vauxhall Pleasure Gardens to the city's seedy underbelly, they are caught in a dangerous game of lies and deceit. And a terrible new enemy lies in wait with designs more monstrous than they could ever imagine... Can Camille play on to the end or will she be forced to show her hand? In Paris, the Duc is playing his own dangerous games. With Ada in his thrall, old loyalties are thrown into question. The Battalion are torn apart as never before, and everything – Ada's love for Camille, her allegiance to the battalion itself – is under threat.

The daring and dramatic conclusion to Kat Dunn's epic C18th French Revolution trilogy 'with lashings of lust, love, sacrifice, betrayal and horror'. Robespierre is dead. The Reign of Terror is over. As Royalist strength grows, the Duc de L'Aubespine plots a coup that will consign the revolution to history. With Olympe in his clutches, he believes nothing can stop him. But he's reckoned without the intrepid Battalion of the Dead! Reunited in Paris, Ada is poised for action - but if she plays her hand too soon, everything she's sacrificed to gain his trust will be lost. Meanwhile, an unlikely alliance with an old enemy might be Camille's only option to save Olympe and stop the duc in his tracks. The glittering and macabre bals des victimes and the eerie catacombs make the perfect backdrop for the final episode of the Battalion's tale.