The Adventure of the Red-Headed League
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A Sherlock Holmes short story by Arthur Conan Doyle, published in 1891, in which a tunnel is dug beneath a pawnbroker's shop.
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Mentioned once in Deathtrap.
Deathtrap
Season 9 · Episode 19 · S09E19
“In a scene right out of "The Case of the Red-Headed League," Niles's head emerges from the hole in the floor with his lantern.”