YA Mystery and Thriller writing prompts, page 2

In an elite boarding school, students start receiving anonymous letters that reveal their deepest secrets and fears. The protagonist, determined to unmask the sender, enters a world of intrigue and conspiracy, only to realize the sender might be closer than they thought.

During a summer job at a quirky antique shop, your character discovers a hidden drawer in an old desk filled with unsent letters addressing a serious crime. Intrigued, they decide to solve the mystery behind the letters, leading them into the dangerous orbit of a powerful family with dark secrets.

While exploring an abandoned house on a dare, a group of teenagers find a locked diary in a hidden compartment. Curious, they find the key and start reading, only to realize the diary contains clues to an unsolved mystery in their town. As they piece together the clues, someone starts trying to stop them from uncovering the truth.

The night of the high school's big football game, the star player mysteriously disappears. One shy student who knows a secret about the player’s past finds themselves tangled in the investigation. As they delve deeper, they discover that nothing and no one is as it seems.

At the annual summer carnival, the main attraction is a legendary magician rumored to possess real magical powers. One teen notices that after each show, someone in the audience goes missing. Teaming up with a curious newcomer in town, they investigate the connection between the magician's illusions and the disappearances, uncovering a dangerous secret.

Imagine your protagonist wakes up with a mysterious key in their pocket and no memory of the night before. The only clue is a cryptic note that reads, "Unlock the truth." Describe their journey to piece together the events of the previous night and discover what the key opens.

A high school junior discovers an encrypted digital journal on a USB drive stuck in a library book about code-breaking used in wars. Determined to crack the code, the teen uncovers messages leading to a long-lost treasure hidden somewhere in their school, guarded by an enigmatic society of teachers.

Envision a scenario in which a teen gets a part-time job at an old, seemingly quaint bookstore, only to discover that certain books contain secret messages and clues about a forgotten local mystery involving the founding families of the town.

Every year on the anniversary of an unsolved town mystery, the local teens gather to recount the tale and explore the supposedly haunted site related to the event. This year, however, they find new clues that suggest the story they’ve been told is not only incomplete but was fabricated to cover up the truth.

A group of friends start a podcast to explore and solve local mysteries. Their latest topic? The decades-old unsolved case of the haunted lighthouse. As they gather facts and interview locals, they begin to unearth new evidence that someone is desperate to keep hidden.