The Psychology Mystery is not just a psychology textbook—it is a thrilling educational novel that transforms the study of Paradigms of Psychology into an unforgettable mystery of behaviour, personality, choice, and human potential. When Nishank and his friends Ragini, Mayank, Mridul, Mehak, Dumbledore and Tara encounter strange behavioural events, mysterious psychological files, unexplained reactions and a hidden experiment, they are forced to investigate the human mind from four different perspectives: Behaviourism, Psychoanalysis, Humanistic Psychology, and the Socio-cultural Perspective. Through suspenseful discoveries, classroom experiments, emotional conflicts and unexpected twists, students learn important psychological concepts in a simple and engaging way. The story introduces concepts such as stimulus and response, classical conditioning, reinforcement, unconscious processes, psychosexual development, self-actualization, personal growth, autonomy, culture, social influence, and many others through realistic examples and natural dialogue rather than conventional textbook explanations. As the mystery deepens, the students discover that no single psychological paradigm can completely explain a human being. The novel also introduces important historical thinkers and encourages students to examine the strengths, limitations and practical applications of psychological theories in education, counselling, relationships, behaviour change and everyday life. Most importantly, the story develops critical thinking by exploring evidence, assumptions, confirmation bias, ethics, informed consent, privacy, confidentiality, empathy, and responsible use of psychological knowledge. With cinematic suspense, emotional character development, academic clarity and a powerful final twist, The Psychology Mystery offers students a new way to learn psychology—by becoming part of the mystery themselves.