Grade II townhouse whereSir Arthur Conan Doyle wrote his favourite Sherlock Holmes story is going on the market for $3million http://www.dailymail.co.uk/news/article-3521320/The-house-helped-Sir-Arthur-Conan-Doyle-write-favourite-Sherlock-Holmes-story-woman-worried-stepfather-trying-murder-goes-hammer-1-5million.html