Mystery novels are really popular because they have engaging and suspenseful plots. They keep readers guessing and trying to solve the puzzle until the very end. People love the challenge of figuring out what will happen next. The suspense and unexpected twists make them exciting to read, and that's why so many people enjoy them.

Mystery novels are popular because they offer escapism and entertainment. They allow readers to dive into a different world and take a break from their daily routines. The thrill of the story provides excitement without any real-life consequences. It's a way for readers to experience adventure and exploration from the comfort of their own homes.

Mystery novels are also popular because they explore diverse themes and characters. They often feature complex characters and different settings, which adds depth to the story. Readers enjoy the variety of themes and the development of characters. This diversity caters to a wide range of interests and keeps readers engaged.