A train enters a tunnel in the French countryside. It emerges moments later—without history professor Johnathan Lambert. He wakes to find himself stranded in 18th-century France, on the eve of the Revolution, with only his modern knowledge to survive.
Meanwhile, Agent Nadeau of the Central Directorate of the Judicial Police is assigned to investigate Lambert’s disappearance. But there’s one problem—Johnathan Lambert doesn’t exist. As Nadeau hunts a ghost in the present, Lambert fights for his life in the past, where one wrong move could alter history itself.
Can Lambert stop the Revolution? And if he does, what happens to the world Nadeau knows? A gripping historical thriller where past and future collide—because history is never as unchangeable as it seems.