Psychology is a science that does not only deal with patients but also a branch of knowledge that roams the world of literature to find and interpret events and to analyze characters, their motivations or the results of their previous experiences. This study aims to shed the light on some psychological sides of one character in certain events. The study is divided into an introduction, which introduces the reader to the world of psychology and Freudian theories concerning war. It paves the way for the following fields of study, which concentrate on certain aspects of psychological disorders in the main character. It shows the connection between psychology and some novels, from pre-modern period to the 19th and 20th centuries. It also discusses Freud’s interpretation of war neurosis in particular. The second section is devoted to Robinson’s Sparta, which studies Post-Traumatic Stress Disorder of the protagonist, Conrad. Psychological disorders can be touched in this section, such as, Recalling traumatic events, alienation, depression, anxiety, and dreams, which recurrently threaten Conrad’s quietness. The last section is a brief conclusion for the study.