One could consider non - fictional works as the opposite of mystery novels. Mystery novels are typically fictional stories centered around a mystery to be solved, while non - fictional works deal with real - life events, people, and facts.
Travelogues. Mystery novels are crafted to keep readers guessing about what will happen next in the mystery. Travelogues are more about the author's real - life travel experiences, the places they visited, the cultures they encountered, and the things they saw and did during their travels, which is a far cry from the world of mystery novels.
Tragic novels could be considered the opposite. Comic novels are often light - hearted and humorous, while tragic novels deal with serious, often sad and gloomy themes like death, loss, and despair.