Thriller novels are a genre of fiction that focuses on suspense, excitement, and tension. They often involve a protagonist facing dangerous situations, such as crime, espionage, or psychological challenges. The fast-paced narrative keeps readers on the edge of their seats, eager to uncover the next twist or turn in the plot. Common elements in thriller novels include unexpected plot twists, high stakes, and complex characters. Authors like Agatha Christie and Dan Brown are well-known for their contributions to this genre. These stories often explore themes of morality, justice, and the human psyche, making them both entertaining and thought-provoking.