Mystery Puzzle Book · Detective puzzles

The Midnight Vault: A 45-Minute Murder Mystery

The Midnight Vault: A 45-Minute Murder Mystery: mystery puzzle book PDF cover$5.99
$5.99 one-time
1 to 4 players, ages 12 and up30 to 45 minutes, six linked puzzles

A printable mini murder mystery for 1 to 4 players. Five pieces of evidence, six linked puzzles, one killer locked in with the truth.

  • 1 to 4 players, ages 12 and up
  • 30 to 45 minutes, six linked puzzles
  • 12 pages: case file, evidence, puzzles, hints and full solution
  • Colour edition (tablet-friendly, clickable contents) and printer-friendly edition
  • US Letter and A4 PDFs, nothing to cut
  • English · Instant download (2 ZIP files)

One-time purchase. Not part of the subscription.

Good to know: The MurderMysteryTime subscription includes only the online games in the Cases section. Printable PDFs are not included and are sold separately. See the online membership.

About this game

At midnight the time lock released, the bank vault swung open, and the vault keeper was still inside. The Midnight Vault is a small, self-contained detective case set in a private bank on the night of its last audit. You get the time lock's paper tape, the strongroom plan with its wall of safe-deposit boxes, the badge door log, the victim's coded notebook and the night guard's log with five statements, plus six puzzles that lock together like a chain. Each answer opens the next, and the last one asks you to name the killer and explain how it was done. No internet, no cutting, no outside knowledge. Print it or play it on a tablet.

The Midnight Vault is a printable murder mystery in the style of a small escape room. You get a short case file: who died, where, and who was in the building. Then you get five pieces of evidence exactly as the investigators found them, and six puzzles that use nothing but those documents.

The puzzles chain together. First you work out the time lock code from the panel's own checks. That code is the key to the victim's private notebook, which tells you which badge went missing. The badge log shows when its holder slipped away, the statements show who nobody saw, and so on, until the last puzzle asks for the accusation: the killer and the method. Every step is fair, every answer is unique, and two hints per puzzle are waiting if you get stuck.

Play alone with a pencil and a cup of coffee, as a couple, or with up to four people who each take charge of one document. It fits a quiet evening, a train journey or the warm-up to a game night.

What’s inside

  • Cover and how-to-play page with a clickable contents list
  • Case file with the victim and five suspects
  • Five evidence documents
  • Six linked puzzles with worksheets and answer boxes
  • Two hints per puzzle
  • Full solution and the story of what happened in the vault
  • Colour and printer-friendly editions, each in US Letter and A4
  • READ-ME-FIRST file with printing tips

How to play

  1. Download the zip and open the PDF for your paper size (Letter or A4). Print it single-sided, or open it on a tablet.
  2. Read page 2 (how to play) and page 3 (the case) to meet the victim and the five suspects.
  3. Study the five evidence documents: time lock tape, strongroom plan and box wall, badge door log, the keeper's notebook, and the guard's log with statements.
  4. Solve the six puzzles in order and write each answer in its box. You will need it for the next puzzle.
  5. Write your accusation, then check it against the solution page, which shows the whole chain.

Look inside

Evidence pages of The Midnight Vault: the time lock tape and the strongroom plan with its box wall
The badge door log, the keeper's coded notebook and the night guard's log with statements
Puzzle pages of The Midnight Vault with worksheets and answer boxes

Questions

How long does it take?

Most players finish in 30 to 45 minutes. With hints it can be quicker; a careful solo player may take up to an hour.

Can I play alone?

Yes. The case was written to be solved by one person. It also works well for two to four people sharing the documents.

Do I need to print it?

No. The colour edition is made for tablets: the contents page is clickable and the margins leave room for a stylus. If you print, the printer-friendly edition saves ink.

Is anything cut, folded or hidden?

No. Print single-sided and start. Nothing depends on colour, so black and white printing is fine.

Is it suitable for teenagers?

It is a cosy crime story for ages 12 and up: no blood and no violence on the page. Younger players may want help with the code puzzles.

Do I need any outside knowledge?

None. Every puzzle uses only what is printed in the file, and the rules of each code are explained on the page.

What if I get stuck?

There are two hints for every puzzle, and the solution page walks through the whole chain of answers.

Can I play it again?

Once you know the killer the case is solved, but you can print the file as often as you like for other players in your home.

More printables you might like

Last Train to Edelweiss: mystery puzzle book PDF cover$12.99
Mystery Puzzle Book

Last Train to Edelweiss

24 daily puzzles, 10 to 25 minutes each480-name suspect register plus a suspect tracker

A printable advent calendar with a murder on board. Solve one puzzle a day, cross names off a 480-name register and be left with exactly one suspect on Christmas Eve.

Colour + Printer-Friendly · US Letter + A4

One-time purchase. Not part of the subscription.

Death at the Museum Gala: mystery puzzle book PDF cover$5.29
Mystery Puzzle Book

Death at the Museum Gala

18 clues with a progress check after every third3,000 guests on 50 guest list pages

A gala guest list 3,000 names long, 18 clues and one killer. Cross out every guest the clues rule out until a single name is left. Colour and printer-friendly PDFs.

Colour + Printer-Friendly · US Letter + A4

One-time purchase. Not part of the subscription.

The Saltmarsh Case Files: 25 Detective Puzzles: mystery puzzle book PDF cover$4.39
Mystery Puzzle Book

The Saltmarsh Case Files: 25 Detective Puzzles

25 puzzles in 16 puzzle types, difficulty 1 to 537 pages, Colour and Printer-Friendly editions

A lighthouse keeper vanishes in a storm. Solve 25 puzzles in 16 different types, collect one fact from each, and name the killer. Hints and full answers included.

Colour + Printer-Friendly · US Letter + A4

One-time purchase. Not part of the subscription.

← All mystery puzzle booksAll printables