Through the experiences of Marlowe, King, and other characters, the novel offers a vivid, often disturbing portrayal of men brought to the edge of survival by a brutal environment. The P.O.W.s are given nothing by the Japanese other than filthy huts to live in and the bare minimum of food. Officers from various parts of Britain's Asian empire, accustomed to having native servants provide them with freshly laundered uniforms daily, are reduced to wearing rags and homemade shoes. For most, the chief concern is obtaining enough food to stay alive from day to day and avoiding disease or injury, since almost no medical care is available. Some are degraded and come close to losing their humanity, while others display levels of courage and compassion beyond expectations. Some literally steal food out the mouths of their comrades, while others give away what they have or take terrible risks to help their friends.