The Sherlock Holmes its headquarters on the purported site of 221B Baker Street), decided to create an exhibition based on the fictional detective Sherlock Holmes. Four Holmes enthusiasts (with the support of the family of Sir Arthur Conan Doyle) designed and planned the exhibition, collecting materials (many of them donated) for display, including a Persian slipper to hold Holmes’s tobacco, a gasogene for Dr Watson's soda, and a jack-knife for Holmes to pin his unanswered correspondence to the mantelpiece with. In Abbey House on Baker Street Holmes' sitting room at 221B Baker Street was created. Each day crumpets were supplied by a local
Sherlock Holmes of Sherlock Holmes", edited by Peter Haining; and "The Uncollected Sherlock Holmes", compiled by Richard Lancelyn Green. In terms of writers other than Conan Doyle, authors as diverse as Anthony Burgess, Neil Gaiman, Dorothy B. Hughes, Stephen King, Tanith Lee, A. A. Milne, and P. G. Wodehouse have all written Sherlock Holmes pastiches. Notably, famed American mystery writer John Dickson Carr collaborated with Arthur Conan Doyle's son, Adrian Conan Doyle, on "The Exploits of Sherlock Holmes", a pastiche collection from 1954. In 2011, Anthony Horowitz published a Sherlock Holmes novel, "The House of Silk", presented as a continuation of Conan