On a freezing November night in 1120, the "White Ship" set sail from Normandy to England. On board was William Adelin, the only legitimate son of King Henry I, along with the flower of English nobility. They were young, rich, and hopelessly drunk. They urged the captain to overtake the King's ship. Instead, they hit a rock. The sinking of the White Ship was the medieval Titanic. In minutes, the future of the English crown drowned. This single event triggered "The Anarchy"—a terrifying civil war that ravaged England for decades because there was no heir to the throne. This book reconstructs the party, the crash, and the chaos that followed, showing how a single moment of drunken recklessness can rewrite the history of a nation for centuries.