On May 13, 1917, the Virgin Mary first revealed herself to a trio of shepherd children in Fatima, Portugal. She would appear to them five more times over the course of the year until the great miracle of the sun on October 13, 1917. She brought a message of love and peace that was heard around the world--a sorely-needed antidote to the ravages of World War I. To mark the 100th anniversary of the apparitions, Donna-Marie Cooper O'Boyle provides a one-stop guide to the tradition, history and spirituality of Our Lady of Fatima, including the testimonies of those who have made the pilgrimage and prayers for those who share this devotion.