The Valley of Fear to explore

I am not a regular reader of Sherlock Holmes, but I should be, especially since I love the character and it's always a fun read. Be that as it may, from time to time, I read or reread his stories. There was one book I had always wanted to get my hands on: The Valley of Fear, so far the only cannonical Holmes novel I haven't read yet (for the short stories, that's a diffeent matter). And I couldn't find it anywhere! Well, thanks to my local bookshop, this is no longer a problem: they ordered it for me and I now am the happy owner of this (maybe lesser known?) classic. I know close to nothing about the plot, only that Professor Moriarty is featured in it. And that's enough to make it a worthy read, the Napoleon of crime being rather elusive in the original canon. And because I have a bit of an obsession for Moriarty. Anyway, I am reading something else now, but The Valley of Fear is the next crime fiction title I will explore.