New York, the sweltering summer of 1841: Mary Rogers, a beautiful counter girl at a popular Manhattan tobacco shop, is found brutally murdered in the Hudson River. John Colt, scion of the firearm fortune, beats his publisher to death with a hatchet. And young Irish gang leader Tommy Coleman is accused of killing his daughter, his wife, and his wife's former lover. Charged with solving it all is High Constable Jacob Hays, the city's first detective. Capping a long and distinguished career, Hays's investigation will involve gang wars, grave robbers, and clues hidden in poems by that master of dark tales, Edgar Allan Poe.