The year is 1703. Location: Charles Town, Carolina. Matthew Corbett, a professional problem solver from New York, takes on an unusually simple task - escorting a beautiful noble lady to the annual ball. However, this story stops promising something good when, due to a certain chain of events, Matthew becomes embroiled in a murder investigation. A young girl was brutally stabbed to death on the grounds of Green Sea Plantation, and her would-be killer, a slave named Abram, went on the run into a cursed swampland upstream of a river locals call the River of Spirits. The circumstances of the case force Matthew to take part in the hunt for the real killer of the girl, and ahead there are many dangers that the impenetrable swamp prepares. And something born on this damned land also begins its hunt. What tests will the young problem solver undergo this time and will he be able to escape from the dangerous traps of the River of Spirits?