The Tidal Postbox

An island petition arrives while the causeway is underwater. Trace the journey, examine the harbour evidence and discover how seven pages changed their meaning.

Choose English, Nederlands, Deutsch or Français. One language edition per purchase. Each case contains six connected questions, illustrated evidence, character backgrounds, optional group investigation, a complete full-colour player PDF for screen and print, separate graduated hints and worked solutions with the ending.

For 1–4 players. No host or outside research required. Digital PDF edition; no physical product. No subscription or online-play login is included. A PDF reader and ZIP extractor are required. Fictional investigations with AI-assisted illustrations.