You are a BBC investigative journalist based in London. You are about to get a text message from a journalist in Gaza with an interesting new story...
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Throughout your investigation you will collect evidence which will appear on the wall. You can take a closer look at this evidence at any time.
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You have finished the #TreasureHunters investigation. Please get in touch with @BBCArabic on Twitter or Facebook.
Director and Producer
Design and Animation
Sara Al Wajih
Yaroub Al Muthafar
With thanks to
to spin the coin.
The years following Alexander's death were tumultuous. His generals were trying to gain control of the huge empire that the young emperor had left behind. Perhaps one of them buried their personal fortune fearing a rival might take it.
Perhaps these coins were on board an ancient Greek military ship coming to pay soldiers.
Perhaps a merchant's ship coming to trade sank before making it to the harbour.