The Girl on the Train, authored by Paula Hawkins, is a gripping psychological thriller that will keep you guessing until the very end. The story revolves around Rachel Watson, a troubled woman who becomes entangled in a missing person investigation. As Rachel tries to piece together the events surrounding the disappearance, she becomes increasingly unreliable as a narrator, blurring the lines between truth and fiction. With its atmospheric setting and complex characters, The Girl on the Train is a thrilling read.