A mystery with your name on the envelope.
Every case is a story you solve yourself. Read the evidence, meet the suspects, and name the person who did it. No gore, no jump scares, no tricks — just a puzzle that adds up.
Free to read. You only sign in when you file your verdict.

On the shelf now
The first junior case
The premise
You don't read this mystery.
You solve it.
Most stories hand you a detective to watch from the outside. A junior case hands you the file itself — addressed to you, with your name typed in the corner and one thing missing.
There is no chapter telling you what to think. You get the invitation. You get photographs taken on the night, a key log with a name on it, and the statements four people gave while they were nervous. One page in the file is a page somebody was hoping you would not read carefully.
Then you decide. You pick a suspect, you write down your reasons in your own words, and the answer sheet tells you whether the clues you spotted were the ones that mattered. It is fair: every answer is printed in the file, so nobody gets there by luck and nobody gets there by guessing.
“The rock was in the case at eight-twelve. It was gone by half past. Everything in between is yours to work out.”
Case note
“Read it twice. The second time, the answer is looking at you.”
How a junior case works
Three steps · one sitting
The invitation
A letter arrives with one thing missing and one question you have to answer. It is always addressed to you.
The evidence
Seven or eight exhibits: a photograph, a key log, a couple of statements. Read them twice — everything you need is in the file.
Your verdict
Name your suspect, then say how they did it in your own words. The solution letter opens either way.
What's inside
Not a chapter book.
A case file.
A junior file is built the way a real investigation is: pages you can spread out, compare and pin together. Read it on a screen, or print the exhibits and work on the floor.
The invitation
A letter with your name on it, and the one thing that is missing.
The exhibits
Photographs, a key log, a newspaper clipping — seven or eight pages of evidence.
The suspects
Four people, each with a statement and something they would rather you didn't notice.
The timeline
What happened at eight o'clock and what happened at half past, so you can check who lied.
The answer sheet
Name your suspect and write your reasons. The solution letter opens either way.
Nothing hidden
Every clue you need is printed in the file. No extra downloads, no tricks.
Junior file J-001
Open it, don't peek
On screen
Read anywhere
Printable
Exhibits on paper
A page from the file
This is what a clue looks like.
No puzzle pieces hidden in an appendix, no riddles that need an adult. Just a page that says something true, and one detail in it that does not fit.
Read the whole fileThe Loan Agreement
Item: Lunar sample 14321-B, 42 grams, on loan from the Regional Space Archive. The case alarm can only be switched off with the museum's maintenance key. There is one key…
The brief our writers work to
Written gentle on purpose — so the only thing that is scary is not knowing.
Nobody gets hurt. Ever.
Every junior case ends with everyone safe — including the person who did it.
No gore, no jump scares
The tension comes from a puzzle, not from a fright. Nothing in the file is meant to keep you up at night.
Fair play, always
Every clue the answer needs is printed in the file. You never have to guess, and nothing is a trick.
A bad choice, not a bad person
The culprit is always someone who decided to do the wrong thing, never a monster.
About twenty minutes
Short exhibits, plain sentences, and no page that needs a grown-up to explain it.
Read it together
Everything in a junior file works out loud, so a grown-up can read along without spoiling a thing.
Junior file J-001
Free this month

The first junior case
One rock. Four suspects. A museum that locks its doors at eight.
7 exhibits · 4 suspects · about 20 minutes
Questions
Asked by detectives and their grown-ups
Anything else, write to the bureau and a human will answer.
hello@plottwistmystery.comNo. Junior files are written to a stricter brief than the main cases: nobody is hurt, there is no gore, no horror imagery, and every case ends with everyone safe — including whoever did it. The tension is a puzzle you are trying to finish, not a fright.
For grown-ups
The junior shelf is separate from the monthly membership. A junior case is free to read from start to finish — no card, no paywall — and a sign-in is only asked for at the very end, so a verdict can be filed and the solution letter sent on.
Junior files are written to a stricter brief than the main cases: no violence, no deaths, no horror imagery, and no bleak endings. There is no chat, no public profile and no comments section on the junior shelf. If you would rather your detective did not have an account at all, they can read the whole file and stop at the verdict.
One case on the shelf
The file is open.
The detective is you.
Seven exhibits, four suspects, and about twenty minutes. Read all of it for free, then name the person who did it.
No card · no sign-in to read · nobody gets hurt