
The story opens on a fog‑laden afternoon when the narrator slips into a quiet tea‑shop and reconnects with a peculiar old man, the so‑called Old Man in the Corner. With his perpetual knot‑tying habit and a cracked, sardonic voice, he points out a newspaper headline: “The Mystery of the Khaki Tunic.” He boasts that the case has become his favorite puzzle, daring the narrator to match his deductions. Intrigued, the narrator is drawn back into the world of criminology he thought he had left behind.
The mystery centers on Hardacres, a solitary country house run by the reclusive Miss Mary Clarke, who sells poultry from her modest farm. Local police are stumped, and rumors swirl about a vanished khaki uniform linked to a recent crime. As the old man lays out the facts, the narrator must sift through strangers, shady acquaintances, and the lingering shadows of the Great War to untangle the first clues. Listeners are invited to follow the careful reasoning that promises a classic whodunit atmosphere.
Language
en
Duration
~10 hours (583K characters)
Publisher of text edition
Project Gutenberg
Original publisher
United States: George H. Doran, 1923,copyright 1926.
Credits
Al Haines
Release date
2022-06-04
Rights
Public domain in the USA.

1865–1947
Best known for creating the masked hero of The Scarlet Pimpernel, this Hungarian-born British writer helped shape the adventure and mystery stories readers still love today. Her fiction mixed romance, danger, and quick wit in a way that made it hugely popular in the early 1900s.
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