Treason's spring

From the secret archives of the Comptrollerate-General for Scrutiny and Survey. 1792 : blood begins to drip from the guillotine. The French Revolution is entering its most violent phase and Europe confronts chaos. The spies of England, France and Prussia are fighting their own war, for a trove of secrets that will reveal the treacheries of a whole continent. At the height of the madness a stranger arrives in Paris, seeking a man who has disappeared.Unknown and untrusted, he finds himself the centre of all conspiracy. When the world is changing forever, what must one man become to survive ?