"The Fever" is a novel by Megan Abbott that explores the impact of a mysterious illness affecting teenage girls in a small town. The story is told through the perspective of Lise, a high school student, as she navigates the fear and paranoia surrounding the outbreak. As the girls begin to experience strange symptoms, the community becomes increasingly anxious, leading to rumors and suspicion. The novel delves into themes of adolescence, social pressure, and the search for truth amidst chaos, ultimately questioning the nature of fear and its effects on relationships.