Now, I'm going to start out by saying that while I read the previous book, 'The House of Silk', rather a while ago, I distinctly remember enjoying it. Not the case with this one, at all. To be quite honest, at times I rather felt like throwing this novel at a wall. One of my main problems with 'Moriarty' is it's lack of sophistication - it feels more like a young adult novel than "a relentlessly thrilling tale" of crime and crime-solving for adult fans of Sherlock Holmes.
I understand that with crime novels an author has to explain deductions and how things were worked out by the characters, but some things were just so spelled out it was painful to read. In fact I remember remarking to a friend that the explanations of some deductions were so patronising I would have preferred putting my hand through a shredder.
Being a best-selling author I believe Mr Horowitz should know that writing as if your readers are incredibly stupid just makes said readers mad. Many times as I was reading I picked up on things before our dear main character, and having finished the book I know why this is, but I just found it annoying and found myself laughing at how slow the main characters were to pick up on things. At times it would take a whole load of unnecessary paragraphs from a clue to the characters working it out. This combined with discussion of some events in the original Holmes stories made me feel as if Horowitz was throwing what he could in to bump his word count.
Further, all the little references to the original Holmes stories, and other tidbits such as the reference to Sweeney Todd felt cheap to me, like Horowitz was just throwing anything Victorian-related in, in an attempt to spice up a very bland book. It honest to god made me grit my teeth and stare angrily at the page, willing the words to disappear every time it happened. I actually dog-eared (I'd say sorry for this terrible crime against books, but this one deserves it) the pages with such references, along with instances of incredible main character stupidity to remember for a friend so we could laugh about them.
Let me also add, that the ~surprise plot twist~ just made me angry. I had been staying up in bed to try and finish this godforsaken book when the twist hit, and I threw the damn thing onto the floor and gave up on it for the night. I didn't feel wonderfully tricked and surprised. No, I felt cheated and annoyed at what felt like a last-ditch effort to make this story interesting. On the back cover, the Sunday Times says Horowitz replicates the spirit, style, suspense and atmosphere of Conan Doyle's stories, but I did not feel this at all. Honestly, 'Moriarty' reads like uninspired fanfiction thought up by a high school student for an assignment, who thinks they're clever for throwing in little references and twist endings - sorry, Mr Horowitz.
If all of this sounds excellent to you, give it a go - the atrocity of some parts was actually enjoyable to me as it was so hilariously bad. If you're very particular about your crime and your Sherlock, and don't enjoy things being so spelled out you feel like a primary school student, I'd say save your money and give this a miss or borrow it from a library.