In January 1890, the island of Heligoland was British. By the year's end the British Government had handed the island over to Kaiser Wilhelm II of Germany in return for transitory advantages in East Africa. Both Kaiser Wilhelm and Adolf Hitler fortified the island and made it into a U-boat base. After both the First and Second World Wars, Heligoland's inhabitants wanted to be British again, but this was never allowed. This book tells What Might Have Happened if Britain had retained Heligoland, with an idea of the effects on world events up to 1925. And it all starts with the marriage of a young Danish Princess to Prince Albert Edward, Queen Victoria's eldest son...