As always, the sometimes startlingly surrealistically original, sometimes comfortingly groanworthy, jokes are underlain by some intensely complex ideas and tight plotting. Susan sto Helit makes a reappearance as one of Pratchett's more interesting heroines; the sinister Lady LeJean is one of Pratchett's most interesting villains, particularly once we learn the answer to the mystery about her.
There is an attractive darkness to much of the humour here--Pratchett is often at his best when at his darkest.--Roz Kaveney
The Monks of History live in a Tibetan sort of area known as "enlightenment country." Their job: "to see that tomorrow happens at all." A mysterious Lady wants time-obsessed Jeremy Clockson to build a totally accurate glass clock. It will trap time and stop it, eliminating humanity's irritating unpredictability. This would make the Auditors, who observe the universe and enforce the rules governing it, very happy. It would also put Death out of a job, which the Grim Reaper isn't happy about. Fortunately, the History Monks have encountered this situation before; in fact, Lu Tze, the Sweeper, has personally dealt with it before. Even better, he has a new, gifted apprentice, Lobsang Ludd, the "thief of time." This time, they'll stop trouble before it can start! To add chaos to the mix, there's the Fifth Horseman of the Apocalypse--the one who quit before they became famous.
Although there are 25 other Discworld novels and many of the characters appeared first in previous books, you don't need to have read even one to enjoy The Thief of Time. (If you're the sort of reader who hates to miss any references, you might want to track down a copy of The Discworld Companion.) As a bonus, this book is a painless introduction to what quantum physics says about the nature of time. --Nona Vero