While planning a bicycling trip along the Heraklean Way, the ancient route from Portugal to the Alps, Graham Robb discovered a door to that forgotten world--a beautiful and precise pattern of towns and holy places based on astronomical and geometrical measurements: this was the three-dimensional "Middle Earth" of the Celts. As coordinates and coincidences revealed themselves across the continent, a map of the Celtic world emerged as a miraculously preserved archival document.

Robb--"one of the more unusual and appealing historians currently striding the planet" (New York Times)--here reveals the ancient secrets of the Celts, demonstrates the lasting influence of Druid science, and recharts the exploration of the world and the spread of Christianity. A pioneering history grounded in a real-life historical treasure hunt, The Discovery of Middle Earth offers nothing less than an entirely new understanding of the birth of modern Europe.