The Midnight Cipher
A cryptographer is found dead in his locked study, surrounded by encoded messages. Detective Mara Cross must decipher the trail of numbers before the killer strikes again.
The board
Photographs, pinned and strung
Your case is a corkboard. Every lead is a photograph held by a brass pin, joined to the others by red string. Solve one and the leads behind it come out of the dark — some threads run parallel for a while, then reconverge on a deduction you cannot reach until you have worked more than one angle.
Nothing arrives in order, and nothing is handed to you.
The puzzles
Graded by what a solve actually needs
Counting givens is a poor measure of difficulty — a grid with forty clues can be harder than one with thirty. So the puzzles here are sorted by the techniques a solve genuinely requires, checked offline before they ever ship, and drawn by band rather than fixed per lead. Replay a node and you get a fresh grid.
Difficulty climbs as the case tightens: a first lead you can read at a glance, an endgame that will hold you.
The cases
Two investigations
The Cartographer's Widow
An insurance inspector is sent to close a routine death claim in a coastal town and finds the dead man's last chart shows a bay that does not exist. It did once. Somebody spent fifty-two years taking it off the map.
What it isn't
No noise
- No advertising, anywhere.
- No energy meters, no lives, no waiting to play.
- No countdown pushing you to buy your way past a grid.
- No account, no sign-in, no data collected about you.
The first case is free. The second is one purchase, and it stays yours.