Smoke and Ashes: Opium's Hidden Histories is a 2023 non-fiction book by Amitav Ghosh. The book arose from research Ghosh conducted on the historical opium trade and its relation to India and China while he was writing his fiction novel series, the Ibis trilogy. In it, Ghosh discusses the history of tea, the Opium Wars and links between colonialism and the modern opioid crisis. Source: Wikipedia (en)