The military campaign of Hernan Cortes and the Conquistadors resulted in the destruction of the great city of Tenochtitlan in modern-day Mexico and the collapse of the Aztec Empire in 1521. The Spanish invasion had also seen the introduction of smallpox, a disease which would kill millions of Mexican Indians in just a few years. This once-proud nation had lost its leaders, their temple had been destroyed, and human sacrifice to their gods had been outlawed. But the apparitions of Our Lady to a poor Indian named Juan Diego at Tepeyac Hill in December 1531, and the miraculous appearance of her image on his tilma, would result in the greatest conversion to Christianity in history. This book gives a fascinating insight into these events and Our Lady's message for each of us, as well as drawing comparisons with the apparitions at Lourdes in 1858 and Fatima in 1917.