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Case fileCase#006

The Shadow of Thalgadda

A Roman city on the high plateaux. A professor dead among his finds. A postcard covered in numbers — and a column whose shadow does not lie.

Difficulty
Investigation time
90–150 min
Players
1–6
Case type
Homicide
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Confidential
DT-006Homicide

The Shadow of Thalgadda

In this file#22

The investigation

What lands on your desk

You are the consulting detective. On Thursday 2 April 2026, at the archaeological mission of Thalgadda, near the town of Tamzirt, the director of the excavation was found dead in his finds storeroom. That same afternoon he had discovered that something was leaving it. Open the evidence in any order. Statements contradict each other; people lie, and some lie about small things for innocent reasons. Two items are puzzles: a postcard covered in numbers , which the professor was trying to read when he died, and a photograph of the Arch of the Legion whose shadows you must read with the sun table. Use the notebook and the timeline. When you are ready, file your accusation.

22 documents5 suspects

  • Police reports

    Official findings, timelines and first statements.

  • Witness statements

    What people saw — or say they saw.

  • Phone records

    Calls and messages, to the minute.

  • Financial records

    Accounts, receipts and money that moved.

  • Crime scene photos

    The scene as it was found. Look twice.

  • Maps

    Who was where, and how long it took to get there.

  • Personal documents

    Letters, diaries and notes never meant to be read.

Persons of interest

  • Dr Hania Ziani

    Dr Hania Ziani

    41 · Deputy director, epigraphist

  • Walid Messaoudi

    Walid Messaoudi

    29 · PhD student, photographer of the mission

  • Dr Claire Vasseur

    Dr Claire Vasseur

    52 · Mosaic specialist, from France

  • Rafik Hamlaoui

    Rafik Hamlaoui

    48 · Antiques and décor dealer, Tamzirt

  • Moussa Merabet

    Moussa Merabet

    61 · Guard of the mission compound

What you’ll need to solve

Three questions. One truth.

When you are ready, you file your accusation. Each answer must be backed by the evidence — then the full solution is revealed.

Accusation formDT-006
  1. 01

    Who did it?

    Name the culprit.

  2. 02

    Why?

    Find the motive.

  3. 03

    How?

    Explain the method.

Closed

Case file #006

The file is waiting.

Start investigation — 1 500 DAI already have a code

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  • Instant access
  • Browser based
  • Solo or group

Pay by BaridiMob or CCP: send a photo of the receipt and the case is added to your account, usually within 24 hours.

FAQ

Questions before you open the file

How do I get access?

The first case is free, no code needed. For the others, order on the site (BaridiMob or CCP): once the payment is checked, the case is added to your account and you play directly in your browser.

Do I need to print anything?

No. Everything is online, on phone or computer. You can still take notes on paper if you like.

Can I play with friends?

Yes. Open an investigation room: your friends join with a code, each on their own phone, and only you need the case. Or gather around one screen.

What if I get stuck?

In the Accuse tab, each question has a “Hint” button: it rules out one wrong answer (never the right one). Each hint costs 1 point from your final score. Before that, re-read the statements and fill in the notebook timeline: everything is in the file.

Is any of this real?

No. All cases, people and places are fictional.

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