A Benedictine monastery called Emmaus has been standing on a hill overlooking the city of Prague since 1348. Around the same time that the Black Death came to its doors, so did a mysterious book. The monk who delivered it said that if someone inquires as to its existence, it must be denied. If someone were to learn of its contents, that person must be killed. The Holy Roman Church could be undone by its secrets.

Hidden in the monastery by an elderly translator and lost after his death, the book has long been the subject of searches... first by two young monks in 1373, then by the Nazis in 1944, and finally by a beautiful professor and her graduate assistant in 2022. Some will search, some will fall in love, some will die, and some will find The Book of Emmaus.