Book Review: ‘Sleuth-Hound,’ by Lindsey Fitzharris – The New York Times

October 26, 2026

nonfiction

Who Inspired Sherlock? Elementary!

A probing, excellent account of one crusading medical professor explores the humanity behind literature’s master of deduction.

The black-and-white image portrays a still of a 1939 film, “The Adventures of Sherlock Holmes,” featuring an actor, Basil Rathbone, in a plaid coat and checked cap, holding a gun in one hand and a magnifying glass in the other. — Arthur Conan Doyle’s most famous fictional creation is now a cultural touchstone, memorialized in media, as in the 1939 Basil Rathbone vehicle “The Adventures of Sherlock Holmes.” But as Lindsey Fitzharris demonstrates, the man who inspired the character was just as interesting.Credit…Screen Archives/Getty Images

By Deborah Blum – Deborah Blum is a Pulitzer Prize-winning author and science journalist who specializes in toxicology. She is currently working on a book about female poisoners.

Published Oct. 23, 2026, Updated Oct. 25, 2026

SLEUTH-HOUND: The Case of the Real Sherlock Holmes,
by Lindsey Fitzharris

In the fall of 1876, a young Scotsman named Arthur Conan Doyle became a medical student at the University of Edinburgh. His family, driven toward bankruptcy by an improvident, alcoholic father, hoped that Arthur — the eldest of nine siblings — could rescue them by becoming a successful doctor.

But Conan Doyle turned out to be a mediocre student. He knew it, too; when he received his degree in 1881, he drew a picture of himself, diploma in hand, with the caption, “Licensed to Kill.” After a decade trying to build a practice, he started supplementing his income by writing, planning to take advantage of the thriving new market for crime fiction.

And then he had a dazzle of inspiration. Conan Doyle wanted, he would say later, to write a different kind of detective: savvy about science, obsessive about evidence. He began thinking about one of his Edinburgh professors, a physician named Joseph Bell, known to students and faculty alike for his brilliant gift for reading the smallest detail about a patient.

As “Sleuth-Hound,” Lindsey [Fitzharris]’s fascinating tale of medicine and murder, reveals, this would make Conan Doyle the world’s most famous writer of detective stories — and turn Bell into the unwitting real-life model for Sherlock Holmes.

Sleuth-Hound

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Bell was both an instructor at the university and a senior surgeon at Edinburgh’s Royal Infirmary of Medicine. His passion for evidence-based medicine led him to a side gig assisting in police investigations. (Bell worried, he said, that the police too often made up their minds ahead of the facts and went off in the wrong direction.)

“Without Joseph Bell, it is unlikely that the Sherlock Holmes the world has come to know and love would even exist,” Fitzharris writes. In an 1891 magazine interview, Conan Doyle described Holmes as the “literary embodiment” of his former teacher, and he would go on to honor Bell the following year by dedicating the first book of collected Holmes stories to him.

Bell’s Sherlockian talents are on full display throughout [Fitzharris]’s book. He identifies one patient as a fisherman after noticing a faint glimmer of fish scales on his hands and clothes; a tailor by the pinprick marks on his hands; the habit of pipe smoking from a mark on a woman’s lip.

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