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Write a Victorian Mystery — Literary Prose, You Direct

Yes. Underfiction writes Victorian mystery as literary prose, not chatbot replies — fog at the windows, a letter in a dead man's hand, a detective who reads your history from a glove-button. You bring the case and direct the investigation; frontier models keep the clues honest. Stories stay private by default.

A letter in your pocket, in your uncle's unmistakable hand, posted three days after his funeral. The police were kind for a quarter of an hour. Seventeen steps up from a Baker Street door is the only address left to try.

A scene, written for you
"You have read the letter a hundred times," Holmes said, eyes shut, fingertips together. "Oblige me by not reading it again now. Tell me instead about the ink." "The ink?" "The postmark is Thursday. Your uncle was buried Monday. Either the dead write" — the eyes opened, grey and sudden — "or someone living wishes you to believe they do, which is a great deal more dangerous. Was it black, or blue-black? You noticed. You are the sort who notices; it is why your family calls you morbid, and why you are going to be useful." By the fire, Watson had stopped pretending to read the paper. "Black," she said. "Ha!" He was out of the chair. "Then we go to-night."

You direct; the engine follows. Type a line like Holmes reads my history from my glove-button, listening with his eyes shut — until the postmark snaps them open. Keep the deduction honest, and let me spot one thing he misses. and the scene bends to you — narrate an action, set the mood, or step outside and instruct the narrator directly.


Start this scene with 500 free credits after email confirmation. It opens in Sherlock Holmes, on an authored first page — yours to overturn.

Begin this scene

Frequently asked questions

Can I write a Sherlock Holmes-style mystery with AI?

Yes. You bring the impossible detail — the letter posted after the funeral, the footprints that stop mid-lawn — and frontier models write the investigation as literary prose: deduction, fog, telegrams at all hours, the hansom whistled out of the dark. You direct the case at every turn. The engine plays fair with the clues.

Can I step into Sherlock Holmes itself?

Yes. Sherlock Holmes is one of Underfiction's classics worlds — 221B with the fire lit and the correspondence knifed to the mantel, Holmes and Watson as canon leads, and you as the client whose case will not close. Three authored openings, from the first climb up the seventeen steps to a midnight vigil in a dead man's study. Canon is a spark, not a cage.

Does the AI keep the clues consistent across a long case?

Yes. Scenes work like chapters: when one ends it's summarized and carried forward, so the ink, the ticket-stub, and what the housekeeper said in chapter two are still in play at the reveal. You can also step outside the scene and brief the narrator directly — 'the postmark matters later' — the way an author keeps their own notes.

Do I play the detective, the client, or the companion?

Any of them, and you can move between. Be the client whose family calls it a morbid fancy, narrate as the Watson at the fireside, or take the deductions yourself and let Holmes be the one who misses something. You can put words in anyone's mouth and introduce evidence whenever the story needs it. You direct; the engine follows.

Can a Victorian mystery get dark, or drift into romance?

Both. Victorian crime runs on blackmail, murder, opium dens, and respectable houses with unrespectable secrets, and the models here write that register without refusing or moralizing. And if something warmer grows in the fog — a client and a doctor, say — the story follows where you direct it.

Are my stories private?

Yes. Stories, characters, and worlds live on your device, and portable archives let you back up or move them. Inference runs through Venice, which separates your account identity from what you write, and your prose is never used to train models.

What does it cost to start?

New accounts get 500 free credits after email confirmation, then it's pay-as-you-go — no subscription, no ads. Scene summaries and the background compression that keep a long case coherent are free; you only pay for the prose itself.



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