Love and engineering; a recipe for armageddon
Devices and Desires (The Engineer Trilogy, volume 1)
By K J Parker
Mezentia, queen of the industrialized cities! Also the only industrialized city of note thanks to its habit of closing guarding its secrets through all available means, up to and including casual genocide; it is a very bad thing to give Mezentia the impression some of their intellectual property has fallen into your soon to be extremely and brutally dead hands.