Thief of Time
Thief of Time is the 26th Discworld novel written by Terry Pratchett.
Spoiler warning: Plot or ending details follow.
Synopsis
The Auditors convince a young clock maker in Ankh-Morpork to build a perfect clock, capturing Time herself into it. What he does not think of is that capturing Time into a prison will freeze the time on the Discworld. That's exactly what the Auditors are trying to do.
Meanwhile, in a distant valley, a young apprentice of the History Monks and his old teacher, Lu-Tze, called 'The Sweeper', heard about this plan and are travelling towards Ankh-Morpork to stop this clock from being built.
The Auditors are meanwhile using human bodies to try to feel like humans and are quite disrupted by their experiences as they become more and more human by the minute...
