The Midnight Observatory — Printable Mystery

Launch offer: FREE (€0). Planned regular price: €7.99. Get your free copy. A missing signal lens. Four night staff. A damaged message that needs checking. The Midnight Observatory is a cooperative English paper mystery for 1–4 players, suggested age 12+. Sort a night log, decode an equipment slip, reconstruct a duty sheet, trace a survey route and verify a damaged transmission before choosing the director’s response. Included 8-page Player Pack — A4 PDF 9-page Host Guide — A4 PDF 8-page Player Pack — US Letter PDF 9-page Host Guide — US Letter PDF Print the Player Pack single-sided at 100% and keep the separate Host Guide closed until you need a hint or solution. A pen or pencil is enough; black-and-white printing works. No cutting, physical props, astronomy knowledge or internet is needed during play. The four files are free to download and retain locally. There is no automatic paid charge. Personal household use only; do not resell or redistribute the files. Feedback If you play, please tell us: How many players took part, and how long did you play? Where did you get stuck, if anywhere? How enjoyable was it from 1–5, and what should we improve? Leave feedback in the project comments or discussion. Follow the creator for updates and future cases. Creation note This original case was developed with AI tools, including writing, puzzle design and document production. It does not use a licensed fictional setting.