Thud!, by Terry Pratchett Discworld Series, book 34 My rating: 8/10 Tensions between the trolls and the dwarves are rising as the day of the battle of Koom Valley rolls around again, and just what City Watch Commander Samuel Vimes doesn't need is the murder of an important and respected dwarf. Even with all his work, he manages to get home daily to read Where's my Cow? to his young son, but his hunt for the killer is leading him deeper and deeper into a dark mystery- and he soon learns there are things more dangerous than dwarves hidden inside the mines. While I must admit that I have a special soft spot for the City Watch books in the Discworld series, that's not the only reason I rated it an eight. This is without a doubt the darkest book so far, out of the 33 I've read, and while it is somewhat unfamiliar territory for him, his skill did not abandon him. His books range on a scale from almost putting humour above plot and writing to a much darker side of thing...