Undoubtedly the weakest in this series so far (#4).  Bordelli is very troubled by the death in the title, of a young boy. But rather than launch an active investigation he primarily mooches about, visits friends familiar from the previous book, eats, drinks and smokes far too much, and fantasises about a woman 30 years his junior while worrying about his advancing age (56). The plot drags horribly, and you feel if only he'd actually get on with some investigating, he might get somewhere instead. The focus on the floods in Florence (true story) is fairly interesting, but in this book I actually began to dislike Bordelli. The developments in the case - when they come - are deeply unlikely, the crime is gruesome, some of the descriptions border on homophobic, and there's some pretty unpleasant sexism too. Bordelli slips up, and behaves clearly unprofessionally, and while his ruminations could have been somewhat interesting if adding up to a realistic picture of the middle aged man, the author clearly prefers to live out a middle aged male fantasy instead. Disappointing, as I have enjoyed the others in the series. Unsure whether to continue now.