Nakamoto Hitori 
The Opium War [EPUB ebook] 
How the Chinese Qing Dynasty Got Poisoned For Profit

Imagine a world where a single commodity holds the power to unravel an empire. A substance that is so strong,  so addictive, it courses through the veins of a whole civilization, making merchants into monarchs, emperors into desperate bargainers. 
This is the story of opium in China — a story not just of drugs and war, but also of greed, diplomacy and unintended consequences.
If we take the long view, 19th century China was an altogether self-sufficient superpower. The Qing Dynasty,  with its inflexible traditions and isolationist practices, ruled over a formidable and prosperous empire. Chinese silk, porcelain, and, most of all, tea were in high demand in Britain.