Do you believe in miracles?

Three impossible births. Three incredible miracles. One deadly secret.

When three teenage girls in Mexico, the United States, and Ireland discover they are pregnant, each swears she is still a virgin, and medical tests prove them right. All three are Catholic, all three saw a blinding light before blacking out, and all three share the same name: Mary.

In Rome, a stunned Pope Celestine turns to Harvard professor Cal Donovan, his trusted expert in religion and archaeology, to investigate a phenomenon that looks terrifyingly like a replay of the Annunciation on a global scale. As news of the “Three Marys” breaks, pilgrims flood the girls’ homes, the media fuels a storm of hope and outrage, and powerful factions inside and outside the Vatican scramble to seize control of the miracle.

Cal’s investigation pulls him from the shadowed corridors of the Vatican to dusty border towns and the windswept Irish coast, where he begins to suspect that something far more calculated than a miracle is unfolding. When a colleague is kidnapped and the three girls vanish into a heavily guarded American estate, Cal finds himself facing a conspiracy willing to rewrite doctrine, weaponize faith, and sacrifice the Marys to a cause they barely understand.

A riveting religious thriller, Three Marys is a fast‑paced Cal Donovan novel that fuses Vatican intrigue, cutting‑edge science, and faith‑driven conspiracy into a provocative story about belief, power, and the dangerous seduction of “miracles” in the modern age.