This is book number 36 in the Discworld series.
Amazingly, former arch-swindler-turned-Postmaster General Moist von Lipwig has somehow managed to get the woefully inefficient Ankh-Morpork Post Office running like . . . well, not like a government office at all. Now the supreme despot Lord Vetinari is asking Moist if he'd like to make some real money. Vetinari wants Moist to resuscitate the venerable Royal Mint—so that perhaps it will no longer cost considerably more than a penny to make a penny.
Moist doesn't want the job. However, a request from Ankh-Morpork's current ruling tyrant isn't a "request" per se, more like a "once-in-a-lifetime-offer-you-can-certainly-refuse-if-you-feel-you've-lived-quite-long-enough." So Moist will just have to learn to deal with elderly Royal Bank chairman Topsy (née Turvy) Lavish and her two loaded crossbows, a face-lapping Mint manager, and a chief clerk who's probably a vampire. But he'll soon be making lethal enemies as well as money, especially if he can't figure out where all the gold has gone.
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.