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About this book

In a France gripped by fear of spies, how do you trust a woman whose purpose stays hidden?

In The Woman of Mystery, Maurice Leblanc brings wartime suspicion into a brisk spy thriller. The First World War forms a world of rumours, codes and informers, where names can conceal loyalties and trust never feels secure. At its centre stands a woman whose motives are hard to read.

Betrayal and vengeance drive the tension. A promise offers something to trust, then a broken promise creates a desire for payment. Leblanc, the creator of Arsene Lupin, keeps the story moving through fast scenes and sharp reversals. The pull is immediate: what lies behind this woman's mystery, and who can be believed?

What you’ll discover

  • War in the shadows Enter a world where rumours, codes and informers make suspicion part of daily life.
  • A woman beyond trust Follow the mystery surrounding a deadly femme fatale whose real purpose remains out of sight.
  • Betrayal with a cost Feel the tension as trust faces tests and broken promises stir the wish for vengeance.
  • A brisk unfolding mystery Let clear, quick prose carry you through scenes shaped by secrets and sharp reversals.
  • Questions that pull forward Discover the lure of chapters that often close on a question or a surprise.

Who will love it

For readers who enjoy wartime intrigue, quick plots and French popular fiction from the early twentieth century, with secrets, hidden loyalties and revenge.

What’s inside

The key ideas, in the 15-minute summary

  1. A war fought in the shadows
  2. The woman at the center of suspicion
  3. Betrayal and vengeance drive the plot
  4. How a popular thriller is told

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Mystery & Crime

La mujer misteriosa

by Maurice Leblanc · 1915

In a France shaken by the First World War, a mysterious woman moves amid spies, betrayal and the wish for revenge.

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La mujer misteriosa by Maurice Leblanc, the cover

From the 15-minute summary · Key idea 1

A war fought in the shadows

The First World War was not only a war of trenches and guns. It was also a war of rumours, codes, informers and suspicion. In France, newspapers and ordinary people alike worried about spies hidden among neighbours, servants and visitors.

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Who wrote The Woman of Mystery?

The book was written by Maurice Leblanc, the French author who died in 1941. He is best known for the Arsene Lupin stories about a clever gentleman thief.

What kind of book is The Woman of Mystery?

It is a spy thriller set against the First World War. It deals with secrets, betrayal, revenge and a mysterious woman whose loyalties are hard to judge.

Is The Woman of Mystery by the author of Arsene Lupin?

Yes. Maurice Leblanc created Arsene Lupin, though this book is a different kind of tale. It is a wartime spy story rather than a gentleman thief adventure.

The author

Maurice Leblanc

1864–1941 · French mystery novelist

Maurice Leblanc was a French writer born in Rouen in 1864. He wrote novels and short stories, including the Arsène Lupin series, which began in 1905. His books include The Hollow Needle, published in 1909, and The Crystal Stopper, published in 1912. He died in Perpignan in 1941.

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