"African Millionaire" tells the story of a battle of wits between the conman Colonel Clay and Sir Charles. Colonel Clay deceived Charles by pretending to be different identities, such as the Mexican prophet, the young priest Richard Peplo Brabazon, Professor Schleiermacher, etc., Making Charles unable to guard against it. The facts of the case were revealed through the humiliating letter Colonel Clay sent to Charles after the incident, revealing the process of his committing the crime. In the end, Colonel Clay was punished by the law.