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About this book

What if the most dangerous thing a man holds is something he knows?

In Edgar Wallace's The Man Who Knew, people hide secrets, names invite doubt, and one man holds knowledge that others fear. This mystery turns on the gap between what people claim to be and what they may really be. As you read, every claim becomes something to test rather than simply trust.

The Edwardian world gives those doubts weight. Strict manners and class lines make a person's name, family and standing matter. Behind polite company lies the possibility of deception. Wallace's fast, plain crime writing invites you to look past appearances and follow a clear question: what does this man know, and why do others fear it?

What you’ll discover

  • Knowledge with a cost Follow a mystery where one person's knowledge becomes a source of fear for others.
  • Names that invite doubt Look closely at identities that may conceal more than they reveal.
  • Secrets behind good manners Enter a world where polite company leaves room for carefully hidden truths.
  • A reader's double vision Test what people say about themselves against what they may really be.
  • A quickening pace Enjoy quick chapters and plain storytelling that keep the central mystery in view.

Is it for you?

This is for readers who enjoy old-fashioned mysteries, quick chapters and secrets kept in polite company. If you want deep psychological study or a modern, realistic police procedure, you may find it less suited.

What’s inside

The key ideas, in the 15-minute summary

  1. Wallace wrote for a busy reading public
  2. The Edwardian setting shapes the secrets
  3. Knowledge is the hinge of the mystery
  4. What to watch for as you read

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15-minute summary
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Hardcover
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Large print paperback
8.5 × 11 in. Printing soon: leave your email under Paperback or Hardcover above.
Large print hardcover
8.5 × 11 in. Printing soon: leave your email under Paperback or Hardcover above.

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Mystery & Crime

The Man Who Knew

by Edgar Wallace· 1918

Hidden identities and dangerous knowledge lie behind a mystery.

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The Man Who Knew by Edgar Wallace, the cover

From the 15-minute summary · Key idea 1 of 4

Wallace wrote for a busy reading public

Edgar Wallace was one of the most productive writers of his day. He worked as a journalist and then turned to fiction, producing crime and adventure stories at great speed. His readers often met his work in serials, in papers and in cheap editions.

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The author

Edgar Wallace

1875–1932 · British crime writer

Edgar Wallace was a hugely prolific British writer of thrillers and crime fiction who later co-created the story for King Kong. The Adventures of Heine follows Heine, a German secret agent, through a series of comic misadventures in Britain during the First World War.

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Questions about The Man Who Knew

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Can my family read too?

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What if it is not for me?

Cancel online in two clicks at any time and nothing more is charged. If you have paid and the library is not for you, ask within 60 days of your first payment and we refund it in full.

Who wrote The Man Who Knew?

The book is by Edgar Wallace, the British journalist and novelist who died in 1932. He wrote a very large body of crime, mystery and adventure fiction for popular readers in the early twentieth century.

What kind of book is The Man Who Knew?

It is a mystery in the Edwardian popular tradition, built around secrets, concealed identities and the power of knowing something others want hidden. Expect short chapters and a quick pace.

Is The Man Who Knew hard to read?

No. Wallace wrote for a broad public, so his sentences are short and his plots are clear. Some period manners and words may feel dated, but the story is easy to follow.

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