Detective novels, also known as mystery novels, are a genre of fiction that typically feature a crime or puzzle to be solved. These novels often involve a detective or amateur sleuth who must use their skills and intelligence to unravel the mystery. Some synonyms for detective novels include crime novels, whodunits, thrillers, and suspense novels. They typically have a fast-paced, suspenseful plot and focus on the investigation of a crime, with clues and red herrings leading the reader through a maze of suspects. Whether you prefer cozy mysteries or hard-boiled crime fiction, the detective novel genre offers something for every readership.