Cozy Case Files

Generate print-ready "find the killer" logic puzzles for your KDP mystery activity book — suspects, clues, and a guaranteed one-solution answer key, every time.

Book details Book / series title Subtitle (optional)

Setting Theme

Difficulty

Controls suspect count, red herrings, and how directly clues point to the culprit. Every puzzle always has exactly one logical solution.

Suspects per case Number of cases

Start numbering at

Layout Include a book title page Include a "How to Solve" instructions page Answer key placement

Export

Manuscript preview

This is exactly what will print or export. Set your options on the left, then generate the book. Nothing here ever leaves your browser — no login, no internet connection, no data sent anywhere.

🕵️

Set your options and click Generate the book to create your first batch of whodunit puzzles.