This is book number 26 in the Discworld series.
Time itself is threatened— and it's up to the History Monks to save it in Terry Pratchett's bestselling Discworld® series
Everybody wants more time. Which is why, on Discworld, only the experts can manage it—the venerable Monks of History who store it and pump it from where it's wasted, like underwater (how much time does a codfish really need?) to places like cities, where busy denizens lament never having enough of it.
While everyone talks about slowing down, one young horologist is about to do the unthinkable. He's going to stop. Well, stop time, that is, by building the world's first truly accurate clock. Which means esteemed History Monk Lu-Tze and his apprentice Lobsang Ludd have to put on some speed to stop the timepiece before it starts. For if the Perfect Clock starts ticking, time—as we know it—will end. And then the trouble will really begin . . .
Sir Terry Pratchett was the internationally bestselling author of more than thirty books, including his phenomenally successful Discworld series. His young adult novel, The Amazing Maurice and His Educated Rodents, won the Carnegie Medal, and Where's My Cow?, his Discworld book for “readers of all ages,” was a New York Times bestseller. His novels have sold more than seventy five million (give or take a few million) copies worldwide. Named an Officer of the British Empire “for services to literature,” Pratchett lived in England. He died in 2015 at the age of sixty-six.