Halloween Escape Room Printable, Detective Mystery Party Game for Teens and Adults, 6 Puzzles

Instant download · 28-page PDF · US Letter · print it as often as you like

One Halloween case, 6 puzzles, one six-letter lock. Print it at home, spread it on the table and work it out. No props, no scissors, no app, no padlocks, and nothing to buy after you have bought this.

Once a year the fete committee at Bramblewick turns the Old Pump House into a lantern walk: a paid path through four rooms and a passage, carved marrows on every sill, one floorboard made to creak on purpose. You pay at a trestle inside the door and a tin under the trestle takes the money. Twice that evening the lamps along the passage went out and came back on — that is one of the effects, and the queue is warned about it going in. In the morning there was hardly anything in the tin, somebody had laid a line of burnt-down candles from the porch to the far room, and a window had been left propped. The village settled on the obvious answer and enjoyed it very much.

The treasurer keeps her working papers in the same cupboard the tin went into, behind a lock that takes six letters. She is away. Six sheets out of her folder are on the table.

HOW IT WORKS

Six puzzles, and six different kinds — a picture puzzle, a logic grid, a word square, a sudoku, a slate written down its columns, and a plan to find the way through. Each one prints its own rule for reading a single letter off its own answer, and no two of the rules are the same shape: one is a picture that comes out as a capital letter, one reads a value out of a finished grid, one is the letter a hidden sentence ends on, one counts along a row of lanterns, one is the letter that lands in a starred square, one is the last letter of a word spelled out along a route. Write the six letters in the six boxes on the Lock Sheet, read them in order, and the cupboard opens.

No puzzle needs the answer to any other puzzle. A table can split up and work in parallel, and the one puzzle nobody at the table likes cannot stop the game.

WHAT'S IN THE FILE

- 6 puzzles on 7 pages (pages 7–13) — one puzzle to a sheet, except the logic grid, which gets its clue list and its grid on facing sheets so both can lie on the table at once.
- The briefing (page 6): the village, the building, the five people in it, and what you are looking for.
- A one-page host guide (page 5). That is the whole of the setting up. There is no script to read aloud and nobody has to act a part.
- The Lock Sheet (page 14) — the board. Six boxes and the rule for putting them together.
- A hint page for every puzzle (pages 15–20), one puzzle to a page, so nobody can see a puzzle they have not reached. Two nudges above a fold line, the answer below it.
- A full walkthrough (pages 21–26): a page per puzzle, showing not just the answer but how the answer is forced, step by step — the logic grid gets its whole clue-by-clue reasoning printed out.
- The answer to the case (page 27), and the working (page 28), which names the program that made and checked each puzzle.

MACHINE-CHECKED, NOT CLAIMED

- The picture puzzle is proved unique on its rows, again on its columns as an independent second pass, and again by a brute force that tries every filling; it comes out line by line with no guessing.
- The logic grid has exactly one solution (counted), an independent brute-force count agrees, a deduction-only solver reaches it without guessing, and no clue is redundant — remove any one of its 13 clues and the case stops having a single answer. One more check is this file's own: no single clue joins the two things the page's rule joins, so the answer cannot be read off one line without solving the grid.
- The word square is put through the generator's own acceptance gate on the finished grid and then searched again, word by word, in all eight directions: each of the 15 listed words is in it once and once only.
- The sudoku has exactly one filling (counted, not capped) and a solver that only uses moves a person makes finished it without guessing. The ringed square is not one of the printed figures.
- The slate is tested against all 720 orders its six blocks could have been written down the columns in, and only the order the page tells you to use comes out as English.
- The plan is proved to be a perfect maze — every room reachable, no ring anywhere — so exactly one route joins the two corners, and that route is re-found by a second, independent search.

And the chain itself is checked end to end. A test program solves all six puzzles from the printed page, applies each page's own printed rule to its own solution, and puts the six letters together. If any puzzle had two answers, or any rule could be read two ways, the file would not have been built. Every surname in the cast is six letters long and they all start with different letters, so the answer cannot be guessed off the list of people either.

PRINTING

US Letter, portrait, single-sided, the same margin left and right. Print at 100% / "Actual size" with "Fit to page" off. Black ink on white — there is not one drop of colour anywhere in the file, so a mono laser printer loses nothing. Nothing on any page comes within 0.6 in of a paper edge. Page 3 is a one-page print guide with the ranges: print pages 6–14 and your players have everything they need and nothing that would spoil it.

WHAT YOU MAY DO WITH IT

Print it as often as you like for yourself and your own household, and print copies for one group you run yourself — a classroom, a library or community club, a care-home or day-centre activity session, a youth group, a family gathering. You may not resell or give away the file, sell the printed pages, or put the puzzles into anything you sell. The full licence is page 4 of the PDF.

WHAT THIS IS NOT

- A PDF to print. Not a physical box, not an app, nothing is mailed, no website to log into.
- Not a murder-mystery party kit: there are no roles to act and no host script. This is pencil-and-paper puzzling with a whodunit wrapped round it.
- Not a set of real locks. The "lock" is a page in the file.
- Not editable or fillable on screen. Solve it on paper.
- Not a horror product. Nothing jumps out, nothing is described, nothing is shown, and nothing in it is supernatural once it has been worked out. It is a theft got up to look like something else, and it is fine for a family table and for a classroom.
- One case, not a book of cases. If you want a longer one, The Armchair Detective Case File — The Ashcombe Hall Affair is the full-length case: nine puzzles, a four-figure safe and a surname, 39 pages. If you want a short one first, The Armchair Detective Starter Case — The Pelham Cup is three puzzles and 16 pages. Each is a separate file and a separate purchase.
- Not clocked for you. Six puzzles is an evening for most tables, but nobody has sat over it with a clock and we will not print a number we cannot stand behind.

NOBODY IS HURT IN IT

This one is a theft, not a death — and the ghost is a story the village likes telling, not something that happens on the page. Nothing is described and nothing is shown. Fine for teenagers and for a family table.

HOW THIS WAS MADE

The five generated puzzles were made, solved and checked by computer programs written for this series, in the same way a crossword compiler produces a crossword. The case itself — the village, the people, the sentences — was written from the same templates the mystery series uses, with the help of an AI assistant. Page 2 of the file says so in the same words.