If you're familiar with the classic children's novel 'Pollyanna', you know very well what the so-called 'glad game' is. (I wasn't...embarrassingly I had to look it up...) If not, I'll tell you in a nutshell: it's making yourself think of something you can be glad about, even in the worst of situations. It's basically thinking positive... it's a game of optimism. So when I read the title and the description of 'Sherlock Holmes and the Glad Game' (and then went and read about who this Pollyanna girl is...) I knew that I must read a book where Sherlock meets this game and this girl! Cynical, rational Sherlock and naive, optimist Pollyanna interact...? It must be hilarious!