On May 29th, 1780, on a road in the Carolina backcountry, Banastre Tarleton’s cavalry cut down hundreds of Virginia Continentals as they threw down their arms to surrender — and gave the southern war a phrase it would never lose: “Tarleton’s Quarter,” meaning no quarter at all. This is the story of what that phrase did. Four months later, on a wooded ridge called King’s Mountain, a Scottish major named Patrick Ferguson made a stand with a thousand American Loyalists against the frontier riflemen he had threatened to hang — and the over-mountain men climbed the hill shooting from tree to tree, killed Ferguson in his checkered shirt, and then, shouting “Remember the Waxhaws,” kept firing into men who were trying to surrender. It was the war’s largest all-American battle: every man who fought was an American but one. Through the massacre that lit the fuse and the revenge that answered it, this is the Revolution as it truly was in the South — not redcoats against patriots, but neighbor against neighbor, in a country turning on itself.