
The Golden Triangle
Translated by Alexander Teixeira De Mattos
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This gripping blend of romance, mystery, and adventure showcases Maurice Leblanc's masterful plotting and introduces Arsène Lupin in a thrilling wartime setting.
Edition details
Book Summary
In war-torn Paris, Captain Patrice Belval rescues nurse Coralie from kidnappers, only to uncover a web of hidden identities, a buried fortune, and a tragic family curse. With the help of Arsène Lupin, they must unravel decades of deception to escape a deadly fate.
Set during World War I, the novel follows Captain Patrice Belval, a wounded soldier, and his love for the mysterious nurse Coralie. After foiling her kidnapping, Patrice discovers Coralie is married to the wealthy Essarès Bey, who is tortured and killed by associates seeking his gold. The plot thickens as Patrice and Coralie uncover a hidden garden with a tombstone linking them to a double murder in 1895. They become trapped in a sealed room, reliving their parents' fate, but are rescued by Arsène Lupin (disguised as Don Luis Perenna). Lupin reveals that Siméon Diodokis, Patrice's presumed father, is actually Essarès Bey, who murdered Patrice's real father and assumed his identity. The climax involves a chase for the gold aboard a barge, a final confrontation where Siméon is killed, and the resolution of the conspiracy, allowing Patrice and Coralie to find peace.
Reading guide
Go deeper in The Golden Triangle
Character guides, themes, chapter companions — plus Character Web, narrative arc, and theme heatmap teasers that unlock fully beside the text in BetterReads.
Narrative arc
Story tension across the book.
- Setup
- Escalation
- Breaking point
- Aftermath
Patrice Belval
Belval moves through the mystery as a soldier first and a lover second: he storms Siméon's gatehouse demanding answers, keeps watch on quays and barges, and lets his temper outrun Don Luis's cautions. His devotion to Coralie — the nurse he calls Little Mother — is inseparable from his rage at whoever holds her, and that rage makes him both relentless and reckless. When the porter blurts that Siméon is his father, the ground shifts under him, and the question of who he really is becomes as urgent as finding Coralie.
Coralie
Coralie is the woman whose portrait hangs curtained in Essarès's house and whose presence at the hospital has quietly captured Patrice's heart; she is also, to his anguish, another man's wife. In the garden scene she stands exposed to the leader's insults and to her husband's torture without fleeing or calling out, a stillness that reads as shame, calculation, or something Patrice cannot name. Her double identity — nurse and countess, healer and hostage — makes her the hinge on which the mystery's romantic and criminal halves turn.
Don Luis Perenna
Don Luis works by indirection: he books a ground-floor room at Mantes, tracks Siméon to the Belle Hélène, and refuses to let the hotheaded captain chase the veiled woman himself. His authority over Patrice is gentle but absolute, and his affection for Ya-Bon — the servant who once saved him in Africa — gives his cool competence a wound underneath. He is the mind the investigation leans on, and the man whose orders will cost him the companion he most trusted.
Siméon Diodokis
Siméon moves through the story as servant, conspirator, and — the porter insists — Patrice's father, a claim Patrice greets with disbelieving laughter. He is Essarès's man, escorting Coralie, meeting veiled women on quays, slipping aboard the Belle Hélène without a backward glance, yet his loyalty to his master is matched by secrets he does not share. His yellow spectacles and thick brows make him a figure of menace, but the question of what he truly is to Patrice keeps him from being a simple villain.
Ya-Bon
Ya-Bon is strength in human form: he runs down fleeing attackers, holds a man by the throat even in death, and is the one presence Don Luis trusts without reservation. His loyalty is absolute and physical, the counterweight to his master's cunning, and the household's affection for him is bound up with Coralie's, who nursed him like the other wounded men. When he dies saving Don Luis, the loss lands as a personal debt, not a tactical setback, and it changes what the survivors are willing to do.
Essarès Bey
Essarès Bey is the power behind the Rue Lafayette bank and the house where seventeen hundred bags of gold are said to be buried, a man whose brain retains the impression of great and imminent danger. He is Coralie's husband, which makes Patrice's devotion to her a trespass as well as a rescue, and the leader's taunt that he loves her passionately sharpens every scene he occupies. The pendant, the album, and the blotted words 'golden triangle' all pass through his hands, making him the still point around which the early investigation turns.
Love and Sacrifice
The central romance between Patrice and Coralie is intertwined with self-sacrifice, as both characters risk their lives to protect each other, echoing the tragic love story of their parents.
Deception and Hidden Identities
The plot is driven by concealed identities, secret pasts, and hidden motives, such as Siméon's true relationship to Patrice and the mysterious 'golden triangle'.
War and Its Aftermath
The novel opens with crippled soldiers and explores the physical and psychological scars of World War I, using the characters' wounds as symbols of enduring trauma.
Greed and Corruption
The pursuit of hidden gold drives much of the conflict, revealing how avarice corrupts relationships and leads to murder, betrayal, and moral decay.