Digital mystery envelopes · Six months

A case you won’t cancel — because leaving early means never finding out who did it.

Monthly Case File delivers a fair-play mystery as printable letters and collectible extras. Each month, a digital envelope arrives. By month six, the last lock opens — and only then.

No live checkout yet — pages are drafts. Pricing marked TBD.


What you’re actually buying

Not a PDF library. Not a pile of printables. An unfinished story — and the question becomes what happens next.

The digital envelope

Every month you receive a letter from a character inside the investigation — about two pages — plus one or two printable extras: a map tile, a collectible plate, a clipping, a verdict card. Print what you want. Keep the rest on screen.

The Two-Lock ending

Letters 1–5 plant everything a sharp reader needs for who and how. The decisive why and final proof surface only in letter 6 — for a reason that exists inside the story. Stay subscribed, or buy the whole season up front.

How a six-letter case works

Same shape every season. New victim, new town, new cast.

  1. Month 1The Summons. Something has happened. You’re cast as consultant, confidant, or stranger — and asked a question you can’t yet answer.
  2. Month 2The Cast. Suspects arrive with motives and alibis. You form a theory. That’s the point.
  3. Month 3The Complication. An alibi fails. Your front-runner takes damage.
  4. Month 4The Reversal. The case is not the case you thought it was.
  5. Month 5The Narrowing. Two names left. Commit to a verdict before the last envelope.
  6. Month 6The Solution. Lock Two opens. Full reconstruction. Then a quiet mention of another envelope, somewhere else.

Q4 case lineup

Four registers. Same six-month mechanic. Pick the flavor that fits how you like to read.

Detective · Whodunit

The Red Ledger Affair

Classic fair-play investigation. Clues you can argue over. A correspondent who needs your judgment.

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Cozy · Gentle intrigue

Death at Primrose Tea

Small-town warmth, sharp observation, no gore. Secrets that matter more than spectacle.

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True-Crime · Fiction · dossier tone

The Westbrook File

Document-forward fiction with the texture of a file — still a story, still fair play, never a real case.

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Kids / Family · Ages ~9–14

The Case of Cabin Seven

Age-appropriate stakes, printable props, and a mystery families can solve aloud together.

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How to subscribe

Each season offers monthly delivery or a prepaid full case. Checkout provider TBD.

Monthly

~$14.97 TBD

Per month · cancel anytime (you’ll miss Lock Two)

  • One digital envelope each month
  • Letter + printable extras
  • Collect the set across six months
Choose a case · checkout TBD
New here? Don’t take our word for the format. Take the free Three-Letter Trial — a complete mini-mystery of its own. It does not spoil any paid season.