"Pelagia and the Black Monk" is an exciting book by Hryhoriy Danylevsky, part of a series of detective novels about the intelligent and passionate nun Pelagia. In this book, the plots of crime, religious crime and mysterious events are intertwined. The plot unfolds in a small monastery on the eastern edge of the empire, where the mystery begins with the disappearance of a black monk - a mysterious figure who became the main event for all residents of the town. Pelagia, with her own unique charm, intelligence and curiosity, decides to discover the truth about the disappearance of the monk and reveal the secrets hidden in the crypts of the ancient monastery. Readers can expect unexpected turns of events, deep philosophical reflections and interesting discoveries, as well as an unpredictable finale that will leave tension and intrigue until the last page.