"Three Came Home" tells of the author's time in Japanese POW and civilian internee camps in North Borneo and Sarawak, and was made into a film of the same name in 1950. It describes Keith's life in North Borneo in the period immediately before the Japanese invasion in 1942, and her subsequent internment and suffering, separated from her husband Harry, and with a young son to care for. Keith was initially interned at Berhala Island near Sandakan, North Borneo (today's Sabah) but spent most of her captivity at Batu Lintang camp at Kuching, Sarawak. The camp was liberated in September, 1945.