ILLUSTRATED ENGLISH MYSTERIES · LOGIC GRIDS · DETECTIVE DESK EDITION
Detective's Desk · illustrated edition

Solve mysteries
with logic.

Open a dossier, follow the clues and solve each mystery. Your greatest tool is your reasoning.

15logic mysteries
2grids per case
✓ ✗deduction first
01 Read the case02 Follow the clues03 Complete both grids04 Solve it

Case library

Choose your next investigation. Every dossier has two deduction grids.

Case 1 / 15

The Missing Necklace

Story illustration

📜 Clues

    🧩 Logic grid — Suspects × Places

    Tap a square: blank → ✓ → ✗ → blank. Match each suspect to exactly one place.

    🧩 Logic grid — Suspects × Times

    Use the second grid to identify when each suspect was seen.

    CASE FILES • ENGLISH MYSTERIES FOR CURIOUS MINDS