One idea could be a world where magic is tied to emotions. For example, when a person is extremely happy, they can create beautiful, floating lights. A young girl discovers she has an unusual ability to control negative emotions like anger and turn them into a powerful force to fight against dark creatures that thrive on despair. She has to learn to balance her emotions to use this power effectively.
A fantasy story could be set in a world where dreams are a tangible reality. There are special hunters who go into people's nightmares to slay the monsters that lurk there. The main character is a young trainee hunter who accidentally enters the wrong nightmare and discovers a conspiracy that could destroy the balance between the dream world and the real world. So, they must fight against powerful dream entities to save both worlds.
A story about a young wizard who fails all his magic exams at the academy but discovers a unique and ancient form of magic that no one else can do. He then has to prove himself to his skeptical teachers and peers. This could involve him using this new magic to save the academy from a dark force.
In a fantasy world, there could be a society where people are born with a mark that determines their destiny. The hero is a person with an unreadable mark. They are shunned by society but discover that their mark holds a special power that could change the world. They must fight against the established order to bring about a new era.
One idea could be a world where magic is tied to emotions. So, when a person is extremely happy, they can create beautiful, floating lights, but when angry, they summon dark, stormy clouds. Another could be a story about a magical library that holds the memories of every person who has ever lived. The main character could be a librarian who discovers a plot to erase certain memories.
A girl inherits an antique mirror from her grandmother. When she brings it home and hangs it in her bedroom, she starts to see a face in the mirror that isn't her own. At first, it's just a fleeting glimpse. But as time passes, the face becomes more and more clear. It seems to be a sad, pale face of a woman. One night, the woman in the mirror reaches out as if trying to pull the girl into the mirror world.
A family moves into a new house. At first, everything seems normal, but then they start to notice that the toys in their children's room move on their own at night. The children also start having nightmares about a shadowy figure that stands at the end of their beds.
One idea could be a story about a cursed antique mirror. Every time someone looks into it, they see a distorted version of themselves that slowly starts to take over their body and mind. They begin to act out the evil deeds they see in the mirror reflection.
A short story about a person who wakes up one day to find that they can understand the thoughts of animals. It could start with the main character being really confused and then gradually realizing the new ability. As they interact with different animals, they learn about the hidden world of nature and also gain a new perspective on human - animal relationships. Maybe they even try to help an animal in danger using this new - found power.
One idea could be a story about a haunted mirror. A young girl moves into an old house and discovers a large, ornate mirror in the attic. Every time she looks into it, she sees a figure that gets closer and closer each day. Eventually, the figure steps out of the mirror.