A battle. A killing. An echo of history.Scarborough Castle, high on the headland, is the picturesque backdrop for an English Civil War re-enactment. But the day takes a sinister turn when the town’s MP is shot and killed in broad daylight. DCI Tom Raven is quickly on the scene, but the investigation is soon commandeered by a senior officer from Counter Terrorism, leaving Raven sidelined.When cryptic letters are received, taunting the police, it becomes clear that democracy itself may be the target. The MP had received a number of credible death threats and suspicion quickly falls on a Russian tycoon with interests in the town. But the murdered man had many enemies, and the list of people wanting him dead quickly grows longer.As more lives are claimed by a ruthless mastermind driving the narrative, only Raven stands between justice and an outcome stained with blood.