The MURDLOCK Archive

Murder mysteries you solve yourself.

MURDLOCK makes whodunit puzzle books for adults: every case hands you the suspects, the evidence and the clues, and the verdict is yours to prove. No lucky guesses, no hidden information, just a pencil and a sharp mind.

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The three MURDLOCK books on a detective's desk
How MURDLOCK works

Every case is fair play

Three rules shape every book we publish.

01

All the evidence, on the page

Registers, grids, alibis and clues: everything you need to reach the answer is in front of you. Nothing is hidden until the reveal.

02

A provable answer

Each case narrows to one name you can prove, and every solution is explained step by step, so you always see how it is cracked.

03

Cases that connect

Our books end with a finale built from your own earlier verdicts. Solving the cases is not quite the end.

The books

The MURDLOCK collection

By Frances Holt. Rated 4.8 to 4.9 stars by readers on Amazon.

MURDLOCK Volume 1: The Vesperford Register Volume 1

The Vesperford Register

12 cases · 6,000+ suspects

Vesperford, England, 1955. Eliminate suspects from a city register, one clue at a time, then crack a twelfth case built from all eleven.

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MURDLOCK Volume 2: Murder Mystery Logic Grid Puzzles Volume 2

Logic Grid Puzzles

50 cases · Easy to Expert

Read the clues, mark the grid, rule out what cannot be true. Big grids, step-by-step solutions and a final mystery built from your answers.

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MURDLOCK Volume 3: Murder Mystery Word Search Puzzles Volume 3

Word Search Puzzles

100 cases · Large print

Find the hidden words, follow the clues, name the killer. A cozy word search with a real mystery in every grid.

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Digital edition

All three books, ready tonight

The complete MURDLOCK collection is also available as a digital bundle: three PDF books you can download instantly, read on any device or print at home.

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Our mission

Put the reader in the detective's chair

Most mysteries let you watch someone else solve the case. MURDLOCK books are built the other way around: you hold the file, you test every theory, and the satisfaction of the final name is yours. Our cases are written for curious adults who like a puzzle with a story behind it, whether they solve alone, as a couple or around the family table.