Sir Arthur Conan Doyle wrote 'The Adventure of the Dancing Men' here in 1903, in which Holmes cracks a code inspired by Conan Doyle's visits to The Hill House

See also...
Photo of Arthur Conan Doyle blue plaque
Jez Nicholson on Flickr
Photo of Arthur Conan Doyle blue plaque
Tim Ellis on Flickr
Photo of Arthur Conan Doyle green plaque
Spudgun67 on Wikimedia Commons
Photo of Oscar Wilde and Arthur Conan Doyle green plaque
Spudgun67 on Wikimedia Commons
Photo of Arthur Conan Doyle brass plaque
chrisinplymouth on Flickr
Photo of Arthur Conan Doyle red plaque
gnomonic on Flickr
Photo of Arthur Conan Doyle and Edith Wharton bronze plaque
RachelH_ on Flickr
Photo of Arthur Conan Doyle brown plaque
Graham Tiller on Flickr
Photo of Arthur Conan Doyle bronze plaque
gnomonic on Flickr
Photo of Arthur Conan Doyle and George Turnavine Budd blue plaque
chrisinplymouth on Flickr
Photo of Arthur Conan Doyle bronze plaque
gnomonic on Flickr