Agatha Christie disappeared for 10 days in 1926 after an argument with her husband, but was found under the name of Mrs. Tressa Neele in a hotel.
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Edgar Allan Poe, inventor of detective fiction, was found in a semi-conscious state in Baltimore in 1849 and died shortly after.
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Ambrose Bierce disappeared in 1913 while traveling to Mexico to gain first-hand experience of the Mexican Revolution and was last seen in Chihuahua, Mexico.
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Ian Mackintosh, a British Navy officer and thriller writer, disappeared in 1979 while flying over the Gulf of Alaska.
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Antoine de Saint-Exupéry, French aviator and author of "The Little Prince," disappeared during World War II while on a reconnaissance mission.
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Yda Hillis Addis, a short story writer, escaped from an insane asylum in 1902 and disappeared forever.
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Irmgard Keun, a German novelist, faked her own death and lived in exile in France or the Netherlands during World War II.
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Agatha Christie is known as the "Queen of Crime" for her famous detective novels.
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