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    Missing Observatory Ledger cover with a domed observatory under a crescent moon, fanned case pages on a blue desk

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    Printable observatory mystery game for adults, 4 logic cases

    A printable whodunit for adults built around a missing observatory ledger. Four logic cases draw on 54 evidence items, a 5,000 record archive and deduction grids, sized for A4 and US Letter paper.

    • 2 files (ZIP, PDF)

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    What is inside

    Someone has made off with the observatory ledger. The suspects are an archive keeper, a night observer and an instrument technician, each with a stated motive and a small keepsake, and a key register records who came and went.

    The previews show a 36-page play file and 5 pages of answers, covering 4 cases and 54 evidence items. Alongside the evidence sheets you get a plate register, a map and category page, an incident briefing, a deduction grid and a final report sheet.

    Print from the zip in A4 or US Letter. A separate PDF links to a copy you can edit in Canva. Read the briefing, cross off options on the grid as statements rule them out, then write up your answer.

    Good for

    • Date night at home
    • Readers who like logic grid puzzles
    • A slow evening with paper and pencil
    • Playing solo or as a pair

    Questions

    Is this the same game as the gallery mystery?
    No. It is a separate case with its own suspects, setting and evidence, built around a missing observatory ledger. It uses the same read, solve and report format of play.
    What do I need to play?
    A printer, paper and a pencil. Print the play file in A4 or US Letter, keep the answer pages aside, and mark the deduction grid as you go.
    Can I edit the pages?
    The download includes a PDF with a Canva link, so you can open an editable copy of the pages there and adjust them before you print.

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