I found this collection a while ago. It’s a.group of Sherlock Holmes stories by authors other than Arthur Conan Doyle, most of which go in the direction of science fiction or fantasy. It might seem like putting the ultimate logician in a situation with no obvious logic would defeat the purpose of the character – and yet, for me, it works.The most famous story from this collection is probably Neil Gaiman’s A Study In Emerald. The non-free version apparently has several more stories.