Mystery is a type of fiction story where the reader follows the clues to solve a puzzle. Imagine you're playing a game of hide-and-seek: you have to find where your friend is hiding by looking for signs like sounds or footprints. In a mystery story, the main character is like a detective who tries to solve a puzzle. They might look for clues like footprints, hair, or even what someone said. The reader can also try to solve the puzzle by following along with the clues. However, the story does not always give all the answers at once. Sometimes, the ending of the story reveals something unexpected that the reader did not expect. It's like a big surprise where the reader gets to find out the answer to the puzzle.