The Book in Brief
Ambrosio, Madrid's revered Capuchin preacher, meets the novice Rosario, who reveals herself as Matilda and seduces him. His secret violation of his vows becomes the beginning of a rapid moral collapse. He soon desires the innocent Antonia and accepts Matilda's supernatural methods for reaching her.
Alongside this plot, Lorenzo and the Marquis de las Cisternas seek Agnes, Lorenzo's sister and the Marquis's beloved. Raymond recounts their earlier romance, the Bleeding Nun episode, and Agnes's forced destination in a convent. Her pregnancy is discovered, and the prioress falsely reports her death while imprisoning her underground.
Ambrosio murders Antonia's mother Elvira, uses magic to enter Antonia's chamber, drugs and abducts her, and rapes her in the monastery crypt. A riot against the convent exposes its subterranean cruelty and rescues Agnes, but Ambrosio kills Antonia when he believes discovery is imminent.
The Inquisition condemns Ambrosio. To escape execution he signs away his soul, only to learn from the Devil that rescue was already near and that his crimes included incest and matricide. The Devil drops him onto a rocky wilderness, where he dies slowly and without the salvation he tried to purchase at the last moment.
Important Characters
Ambrosio: A celebrated monk whose pride, repression, and appetite develop into escalating violence.
Matilda / Rosario: A demonic tempter who enters the monastery in disguise and guides Ambrosio into sex and sorcery.
Antonia: An innocent young woman targeted by Ambrosio and loved by Lorenzo.
Elvira: Antonia's protective mother, murdered after recognizing the danger Ambrosio poses.
Lorenzo: Agnes's brother and Antonia's suitor, involved in the convent investigation and rescue.
Agnes: A pregnant novice subjected to brutal punishment by the prioress.
Raymond / Marquis de las Cisternas: Agnes's lover, whose long history includes bandits and the Bleeding Nun.
The Prioress: The convent superior whose punishment of Agnes helps provoke a violent public uprising.
Chapter-by-Chapter Summary
The headings and sequence follow the complete Project Gutenberg edition, which numbers its 12 chapters within three volumes.
Volume I, Chapter I
Madrid crowds admire Ambrosio's sermon while Lorenzo falls in love with Antonia. A gypsy predicts danger around Antonia, and the celebrated monk's public holiness is established before his private fall.
Volume I, Chapter II
The novice Rosario reveals herself as Matilda, declares her love, and threatens death when Ambrosio rejects her. After caring for her apparent illness, Ambrosio yields to desire and breaks his vows.
Volume I, Chapter III
Raymond begins explaining his history with Agnes to Lorenzo, first recounting travel, bandits, and his rescue at a murderous inn. The long adventure shows how he entered the household at Lindenberg.
Volume II, Chapter I
Raymond meets Agnes at Lindenberg and plans an escape, but her disguise as the Bleeding Nun accidentally summons the real ghost. The supernatural haunting delays him before he later reunites with Agnes in Madrid.
Volume II, Chapter II
Lorenzo accepts Raymond's intentions and seeks legal help for Agnes, while the convent claims she is dead. Ambrosio's reputation continues to shelter his secret relationship with Matilda and his growing interest in Antonia.
Volume II, Chapter III
After sex with Matilda, Ambrosio moves from remorse to renewed appetite. His desire fixes on Antonia, and Matilda offers supernatural means after ordinary access is blocked.
Volume II, Chapter IV
Matilda uses the cemetery and demonic ritual to secure enchanted tools. Ambrosio enters Antonia's home unseen and treats magical access as assurance that she is already in his power.
Volume III, Chapter I
Raymond's search for Agnes fails while Ambrosio enters Antonia's chamber. Elvira interrupts him, recognizes the threat, and is murdered when he strangles her to prevent exposure.
Volume III, Chapter II
Ambrosio disguises Elvira's death, drugs Antonia, and arranges her apparent burial before abducting her to the crypt. His guilt grows, but fear of discovery repeatedly hardens into further violence.
Volume III, Chapter III
Lorenzo obtains authority to investigate the convent as public rage erupts against the prioress. The mob kills her and burns the convent while searchers descend toward hidden cells and hear Antonia's cry.
Volume III, Chapter IV
Agnes is rescued from subterranean imprisonment after losing her infant. Ambrosio rapes Antonia and then stabs her when rescuers approach; the surviving couples eventually recover partial domestic peace.
Volume III, Chapter V
The Inquisition condemns Ambrosio, who bargains his soul for escape. The Devil reveals Matilda's role, Ambrosio's incest and matricide, and the near-arrival of pardon before dropping him to a prolonged death in the wilderness.
Ending Explained
What does the Devil reveal?: Matilda served the demonic plan, Antonia was Ambrosio's sister, Elvira was his mother, and the legal authorities were close to pardoning him.
Why is the bargain futile?: Ambrosio trades his soul to escape a danger that would shortly have passed, making despair his final and most decisive error.
What happens to Agnes?: She is rescued alive from the convent vault and eventually builds a life with Raymond after profound loss.
What happens to Antonia?: Ambrosio stabs her during the attempted rescue; she dies after Lorenzo reaches the crypt.
Themes and Motifs
Pride and repression: Ambrosio's public holiness becomes the foundation of private entitlement.
Institutional violence: Monastery, convent, family, and Inquisition all conceal or authorize coercion.
Despair: The final bargain suggests that hopelessness, not appetite alone, completes Ambrosio's ruin.
The supernatural: Ghosts, prophecy, magic, and demons repeatedly literalize fears produced by secrecy.
Content Notes
Includes rape, incest, murder, matricide, sexual coercion, pregnancy loss and infant death, imprisonment, starvation, mob killing, anti-Catholic prejudice, demonic imagery, and a prolonged violent death.
About the Book
Best for: readers who like extreme Gothic fiction, nested romances, and moral collapse played at full volume. Narrative shape: 12 chapters in three volumes, alternating Ambrosio's fall with the Raymond-Agnes rescue plot. Central contrast: celebrated public holiness versus escalating private transgression. Overall assessment: 4/5 for velocity, audacity, and the clarity of its final trap. Source-checked scope: 12 distinct reading units in Project Gutenberg eBook #601; no front matter was counted as narrative content.
Primary text: Matthew Gregory Lewis, The Monk, Project Gutenberg eBook #601. The complete text contains three volumes totalling 12 chapters, numbered within each volume. The review, plot account, ending analysis, and every structural recap in this guide were checked against that edition.
Selection evidence: Project Gutenberg Top 100 EBooks in the last 30 days — rank #26 with 93,858 downloads in the August 3, 2026 snapshot. Books already completed in the preceding batches were excluded.