This book grabbed my attention out of the gate - Sherlock Holmes reimagined with a young female protege? Yes, please. The book was somewhat true to Conan O'Doyle's take on Sherlock, however, so the rest of the book (after the initial character set-up) unfolded as a series of mysteries. If you're a huge Holmes fan, then you might enjoy the way it tied together a lot of elements from O'Doyle's books, but if you're reading this as a standalone, you might find it annoying and a bit cold/mechanical.