Whodunit & Mystery
Everyone has a secret
A body in the library. A locked room. A missing person. Mystery fiction is the art of the puzzle — planting clues, building suspects, and delivering a reveal that's both surprising and inevitable. AI helps you track red herrings, maintain suspect timelines, and ensure your clues are fair.
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Signal Decay
A deep-space communications officer intercepts a transmission from a colony that was declared dead forty years ago. The message is addressed to her by name.
Clean Rooms
A forensic cleaner who specializes in crime scenes starts finding evidence that links her clients to each other — and to her own missing sister.
Saltwater & Smoke
A marine biologist and a fire investigator keep crossing paths in a coastal town plagued by mysterious arsons near the shore.
Transfer Student Syndrome
On her first day at a prestigious academy, Yuki discovers that every student who transfers in gains a supernatural ability — and hers is the power to see the lies people tell. The student council president has been lying about everything.
The Collector of Last Words
An archivist at a hospital catalogues the final words of patients. When two patients in different wards whisper the same phrase minutes apart, she discovers a pattern spanning decades.
After-School Apocalypse Club
Five students who stayed late for detention are the only ones who remember yesterday — every midnight the world rewinds, and the club keeps minutes.
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Frequently Asked Questions
What's the difference between a mystery and a thriller?
In a mystery, the crime has already happened and the protagonist works to solve it (who did it?). In a thriller, the crime is about to happen and the protagonist works to prevent it (will they stop it in time?). Many stories blend both.
How can AI help write mysteries?
AI excels at maintaining the complex web of clues, suspects, alibis, and timelines that mysteries require. It can help plant fair clues, generate red herrings, and ensure the solution is logically consistent — the hardest part of writing a satisfying mystery.