In 1917, outside the parish of Fátima, Portugal, a 10-year-old girl and her two younger cousins witness multiple visitations of the Virgin Mary, who tells them that only prayer and suffering will bring an end to World War I. As secularist government officials and Church leaders try to force the children to recant their story, word of the sighting spreads across the country, inspiring religious pilgrims to flock to the site in hopes of witnessing a miracle..

Raimund Gregorius, having saved a beautiful Portuguese woman from leaping to her death, stumbles upon a mesmerizing book by a Portuguese author, which compels him to suddenly abandon the boring life he has led for years and to embark on an enthralling adventure. In search of the author, Gregorius acts as detective, pulling together pieces of a puzzle that involves political and emotional intrigue and the highest possible stakes. His voyage is one that transcends time and space, delving into the realms of history, medicine and love, all in search of true meaning to his life.