I dislike this kind of fiction, here a play on a famous Arthur Conan Doyle novel. Yes, I guessed the ending long before it hit -- and when it hit it struck me as in the vein of a Rod Sterling TWILIGHT ZONE episode, where everything flips in the last uttered word. That kind of "plot" worked for me when I was a kid, but that was gimmick excitement and little more. None of the infinite careful loving detail of the real inventor of Sherlock Holmes, who really is so iconic that it is hard to imagine a universe without him and his equally iconic friend, Dr. Watson. Nothing fresh here, however, except a neat twist, just when you expect it most.
I had a hard time following this story as it was read. I am a fan of audiobooks, but there were several times that I wanted to refer to something earlier in the story, which is much easier when reading a book than listening to one. In the end, I did enjoy the story and though Neil Gaiman did a good job reading it, I would have liked this one more in print. (although I'm living in Peru, I'm from the US and English is my first language so it wasn't a language barrier)
I'm a Neil Gaiman fan and this was a free download, but I really didn't like the story. It seemed rushed and not tied together. Don't wast your time with this story. Go buy one of his full length books and you won't be sorry.