What are some plot ideas for mystery novels?

One idea could be a murder in a small, seemingly idyllic town. The victim is a well - liked local figure. The detective discovers that there are many secrets hidden among the townsfolk. Everyone seems to have a motive, from the local business owner who was in financial trouble with the victim to the jealous neighbor. Clues start to emerge, like a strange symbol found at the crime scene that leads the detective on a wild goose chase through the town's history.

One idea could be a small town where people start receiving anonymous threatening letters. The main character, a local journalist, decides to investigate. As they dig deeper, they find that the letters are related to a long - forgotten town secret from decades ago involving a powerful family who will do anything to keep it buried.

One idea could be a story where the main character, a Pokémon in the mystery dungeon world, discovers a hidden power within themselves that no one else has. This power could be the key to saving the Pokémon world from an impending doom, like a strange and powerful dark force that is corrupting the dungeons. Another plot could revolve around a Pokémon who wakes up in the mystery dungeon world with no memories at all, and has to go on a journey to find out who they really are and where they came from. They might encounter various Pokémon along the way that seem familiar but can't quite place them.

One idea could be a story where the protagonist, a Pokémon transformed into a human - like form in the Mystery Dungeon world, discovers a hidden power within themselves. For example, a Pikachu might find out it can control a new type of electricity that no one has seen before. This could lead to them being both feared and revered among the other Pokémon in the dungeon.

A possible plot is that the human has a unique ability from their own world that gives them an edge in the Pokemon Mystery Dungeon. Maybe they can communicate with all Pokemon in a different way, like understanding their deeper emotions. This could lead to them being able to solve disputes between different Pokemon factions. Or perhaps the human is on a quest to find a way back home, but in the process discovers a great threat to the Pokemon world and decides to stay and help.

One idea could be that the apple family's old heirloom apple orchard is at the center of the mystery. Maybe a rare and valuable apple variety was discovered there, and someone in the family was killed to keep it a secret. Another could be a family feud over inheritance that turns deadly. A long - lost relative shows up right before the murder, adding to the suspicion.

One idea could be a story where the main character discovers a hidden chamber in Hogwarts that has been lost for centuries. It could be filled with ancient magic and dangerous creatures. Another plot could involve a time - traveling adventure, where the character goes back in time to witness a significant event in Hogwarts' history. Maybe they have to stop a dark wizard from changing the past. A third idea is a story centered around a mysterious new student who has a special power that no one understands, and the main character has to figure out if they are a friend or a foe.

One idea could be that the gang discovers a mystery related to an ancient curse in their hometown. Maybe there are strange happenings around an old, abandoned mansion that was once the site of a dark ritual. Another could be a mystery involving a new, mysterious character who seems to know more about the gang's past adventures than they do themselves.

A plot could revolve around a series of murders that seem to be related to a long - lost and cursed Hogwarts artifact. As the story unfolds, the main characters discover that different people are being targeted because they are all descendants of those who once had a connection to this artifact. They have to figure out how to break the curse before more people die.

One idea could be a story where the protagonist Pokemon has a unique ability that sets it apart in the mystery dungeon. For example, it can communicate with a long - lost legendary Pokemon that holds the key to a great mystery within the dungeon. Another plot could revolve around a group of Pokemon from different species who must work together to overcome a new and dangerous threat that has emerged in the mystery dungeon. Maybe a dark force is corrupting the dungeon and they have to find the source to stop it.