Eighteenth century France: the Age of Enlightenment.
Dalessius is 20 when he takes a job as the philosopher Voltaire's messenger and spy. Soon he's entangled in a web of secrets and intrigue, leading from the courts and scaffolds of Toulouse to Paris, and a mysterious fortified monastery where Abbot Mazy guards a horrific secret.
Assisted by an executioner and the beautiful, marble-like daughter of an automaton maker, Dalessius faces sinister clergymen, inventive henchmen and poisonous fish in his quest to uncover the truth behind the Abbot's machinations. It will take amazing courage on Dalessius's part - as well as Voltaire's unique cunning and wit - if they are to survive.