When a traveling peddler discovers the murder of a farm family in colonial North Carolina whose bodies have been left in bizarre positions, circumstances point to an Indian attack. But Harry Woodyard, a young planter who is the volunteer constable of Craven County during a period in America's past when there was no professional police force, finds clues that seem to indicate otherwise. The county establishment wants to blame the crime on a former inhabitant, an elderly Indian who has suddenly reappeared in the vicinity like an old ghost. But he is a person to whom Harry owes much.

Defying the authorities, Harry goes off on his own to find the real killer. His investigation takes him up the Atlantic seacoast and turns into a perilous hunt for even bigger quarry that could affect the future of Britain in the American continent.