In the winter of 1941, Japan declared war on Britain, the U.S., and France, launching the Pacific War. During Japan’s bombing of Malaysia, Chinese expatriate Lin Yazhen’s entire family, eleven members was killed, leaving only her and her older brother Lin Yalong alive. Before dying, their mother urged them to return to their hometown in Guangdong, on the banks of the Dongjiang River in Huiyang. There, they joined the anti-Japanese resistance group for overseas Chinese and eventually became part of the Dongjiang Guerrilla Force. Assigned to a special task force, they infiltrated Hong Kong to carry out a secret mission assigned by the Southern Bureau of the Communist Party.
