After searching for her uncle's will leaving her everything, a beautiful lady asks Poirot's help.

from the book True Spouse of Jesus Christ by St. Alphonsus Liguori. How God looks on those who of good will.

Poirot is supposed to be on vacation at a hotel. He can't rest while a mystery is afoot.

The Rosary is said for a baby, cure of a sinful life and cure of blindness.

A wealthy gentleman mysteriously disappears one day after posting a letter. Poirot bets he can solve it without leaving his apartment.

Many people see visions of the greatness of the rosary.

People are told of the value of the Rosary in visions and dreams.

When an Egyptian tomb is opened, there is talk of a curse. After several deaths Poirot is asked to solve the case.

Speaking of how The Mother of God was the first to honor the sacred steps of her Son in Jerusalem.

The beautiful cave is found. Hear the conclusion of the book.