Making Money: (Discworld Novel 36) by Terry Pratchett (Kindle Edition)

The Royal Bank of Ankh-Morpork is facing a crisis and needs a shake-up in management. Cue Moist von Lipwig, Postmaster General and former con artist. If anyone can rescue the city's ailing financial institution, it's him. He doesn't really want the job, but the thing is, he doesn't have a choice.

Moist has many problems to solve as part of his new role: the chief cashier is almost certainly a vampire, the chairman needs his daily walkies, there's something strange happening in the cellar, and the Royal Mint is running at a loss.

Moist begins making some ambitious changes . . . and some dangerous enemies. Because money is power and certain stakeholders will do anything to keep a firm grip on both . . .