It's Carnival week in Cherringham, but while most of the locals are looking forward to the regatta, the parade and the fireworks, Jack and Sarah are more interested in the mysterious body that's been uncovered at the archaeological dig just outside the village ... No Roman soldier - but a young man, no ID. Definitely the victim of a cold blooded murder ... from just a few decades ago. It's a baffling cold case - but one that soon heats up when a member of the carnival committee suddenly goes missing. Jack and Sarah investigate - and quickly come up against a wall of silence. Are the two cases connected? What dark secret from Cherringham's past is being kept hidden? As the Carnival rolls to its spectacular finale, Jack and Sarah race against time to stop the murderer before they kill again ...