Jeremy, a clockmaker of Ankh-Morpork has just been commissioned by the odd-looking Lady LeJean to build the first perfect, truly accurate clock, one that would render all others useless. But if he succeeds, time will stop and the world will end. And Death can feel it, so he asks his granddaughter Susan to investigate while he's trying to round up the Horsemen of the Apocalypse.
At the same time at the History Monks' monastery, Lu-Tze the Sweeper has just taken a new apprentice, Lobsang Ludd, who seems to be able to slice time very, very finely.
In Thief of Time, the 26th Discworld novel, Terry Pratchett explores time paradoxes. Aside from his unmistakable humour which, again, made me chuckle and look a bit silly on the bus (but it's OK), I found the philosophical parts a bit too... well, philosophical, and I must admit I sometimes found myself out of my depth. But as a whole, I found this novel very enjoyable. And in any case I just love Igors.
8/10