Margaret Gaan is a versatile writer. Her novels are primarily set in China. Her books devote a lot of attention to Chinese culture and heritage. She is a writer with a distinctive style. The untold story of the aftermath of opium wars is the subject of the book White Poppy. She depicts the conflict between two cultures in the book. It also emphasises the suffering of opium users as well. The aim of the article is to analyse the negative consequences of opium use in China as well as the suffering of addicts. Additionally, it tries to outline the efforts made to bring a halt to the drug trade.