I had ambiguous impression until the end with this milestone in crime fiction. The beginning (When Sherlock met Watson) was very interesting. Funny, how close the modern TV serie is to the original. The book isn't a classic whodunnit thriller, which in itself isn't a problem. The story is not designed to compete with the detective and to develop suspicions about the offender. The eccentric main character enjoys this privilege, but why didn't the author stay true to this central element and let us share in Sherlock's genius the whole time? Instead, Sherlock pulls the murderer like a white rabbit out of a detective hat to the middle of the book. I thought the book might have been two crime stories when it suddenly went on in Utah. I was simply not interested in this tpart of the story. At the end the plot returns to London and the offender can then tell the story from his view that miraculously coincides with that of Sherlock. Conclusion: The structure of the story is almost a catastrophe for me, but because of the characters it was still a satisfying reading experience.