Minneapolis has a bloody, unacknowledged heritage. On the shore of Lake Harriet, Ojibwe warriors killed a Dakota man, triggering two retaliatory massacres. Ten years later, pioneer settlers roved the land of Minneapolis in gangs for protection from other pioneer gangs. When a lynch mob hanged a violent criminal across the street from Central High School, they left his corpse dangling for hours. Rioting Riversiders toppled a streetcar and attacked the driver. A man murdered a kind stranger because he misunderstood his intentions. Separate industrial disasters shattered the St. Anthony Falls, causing one fatality, and nearly razed the Mill District, killing eighteen more and injuring countless others. Author Ron de Beaulieu uncovers the dark, sinister history beneath the city.