Anne Fitzgerald is called to investigate one of the greatest mysteries of the last 2000 years, when a pair of pregnant teenage girls claim immaculate conception. Her employer, the Archdiocese of Boston, wants to know whether the girls are lying, or if the startling prophecies of Our Lady of Fatima are at last coming pass. Fatima's message says that two infants will simultaneously be born to virgin mothers, with one bieng the new Messiah, and the other the diabolical spawn of Satan. As a former nun, Anne brings a uniques perspective to her search for the truth. But when medical examinations indicate that both girls are virgins, Anne realizes she may have to call on a higher power for guidance. Especially when Father Justin Carroll, the handsome priest who stirred emotions in Anne strong enough to force her from the convent, makes a reappearance. When he joins the investigation, he discovers that Anne may be the key to solving a mystery of biblical proportions.

Two pregnant teenagers -- one in privileged Newport, Rhode Island, one in a poor, remote Irish village -- have nothing in common except for the stunning fact that both are virgins. Private detective & former nun Anne Fitzgerald is called by the Archdiocese of Boston to investigate & to watch over the girls as they come to term. But Anne hasn't been told the secret prophecy of the Virgin of Fatima known only to the Pope: one of these girls will give birth to the Messiah while the other will bear the child of Satan. Caught between the certainty of science & the possibility of a miracle, Anne finds herself at the center of a terrifying battle on which the fate of humanity hangs.

Anne Fitzgerald, a former nun turned private investigator, is hired by the Archdiocese of Boston to investigate two immaculate conceptions as terrifying forces of light and darkness gather.

In Boston, a young woman finds herself pregnant--even though she is still a virgin. In Ireland, another young woman discovers she is in the same impossible condition. And in cities all around the world, medical authorities are overwhelmed by epidemics, droughts, famines, floods, and worse. It all feels like a sign that something awful is coming. Anne Fitzgerald, a former nun turned private investigator, is hired by the Archdiocese of Boston to investigate the immaculate conceptions. Even as she comes to care about and trust the young women, she realizes that both are in great danger. Terrifying forces of light and darkness are gathering. Stepping into uncharted territory where the unknown is just the beginning, Anne must discover the truth--to save the young women, to save herself, and to protect the future of all mankind.