The Golden Triangle
What is The Golden Triangle about?
The Golden Triangle (Le Triangle d'or, 1917) is an adventure mystery novel by Maurice Leblanc, the creator of the gentleman-thief Arsène Lupin. Set against the backdrop of World War I Paris, the story follows Captain Patrice Belval, a wounded officer who witnesses a mysterious meeting of maimed soldiers near the Musée Galliéra. He becomes entangled in the fate of Coralie, a young woman he has admired from afar through a hospital window, whose life is in danger from a shadowy conspiracy. The plot centres on a hoard of gold bars — the "golden triangle" — hidden during wartime and sought by ruthless adversaries. Arsène Lupin emerges under a disguise to untangle the web of kidnapping, murder, and treasure. Leblanc weaves the human cost of the Great War into a fast-paced thriller, using the physical wounds of veterans as both visual motif and moral counterweight to the greed driving the antagonists. The novel stands as one of Leblanc's more emotionally grounded entries in the Lupin canon, blending romantic tension, wartime atmosphere, and the series' characteristic puzzle-box plotting into a coherent and propulsive narrative.
Main themes in The Golden Triangle
Wartime sacrifice and physical injury
Wartime sacrifice and physical injury emerges as a defining element in The Golden Triangle, shaping character development.
Hidden treasure and greed
Hidden treasure and greed emerges as a defining element in The Golden Triangle, shaping character development.
Disguise and hidden identity
In The Golden Triangle, disguise and hidden identity provides a lens for understanding the story's core message.
Romantic devotion under danger
The theme of romantic devotion under danger weaves through The Golden Triangle, adding depth to its narrative.
Why The Golden Triangle is still relevant today
The Golden Triangle offers modern readers a dual lens: a classic Lupin adventure and a document of how popular fiction processed the trauma of the First World War. The wounded soldiers who open the novel reflect a Europe grappling with mass disability and sacrifice, themes that resonate in contemporary discussions of veteran welfare and the social aftermath of conflict. Leblanc's depiction of a Paris operating under wartime anxiety — rationing, suspicion, displaced populations — provides historical texture that complements academic study of the period. The novel also exemplifies the early twentieth-century thriller template: a resourceful investigator, a woman in peril, and a MacGuffin driving the plot. Readers drawn to the recent adaptations of Arsène Lupin in television and film will find The Golden Triangle a useful point of origin for understanding the character's literary range beyond heist capers.
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Frequently Asked Questions
What is The Golden Triangle about?
The Golden Triangle is a 1917 mystery novel by Maurice Leblanc in which the master of disguise Arsène Lupin investigates a wartime conspiracy involving a cache of hidden gold, a young woman named Coralie in mortal danger, and a group of wounded WWI veterans caught up in the intrigue.
Is The Golden Triangle part of the Arsène Lupin series?
Yes. It is one of the full-length Lupin novels and fits within the broader series continuity. Lupin operates under an alias for much of the story, which is typical of Leblanc's storytelling approach across the series.
How long does it take to read The Golden Triangle?
The novel runs approximately 280–300 pages in most editions, which typically takes six to eight hours for an average reader. You can read it for free on TextStack and track your progress with built-in reading statistics.
What are the main themes in The Golden Triangle?
The central themes include wartime sacrifice and physical injury as moral counterpoints to greed, hidden identity and disguise, romantic devotion tested by danger, the pursuit of hidden treasure, and the idea of justice administered outside formal legal institutions — all hallmarks of the Lupin series.