Under a Viking ruin at Hedeby, you find your next clue: "It stands upon the Castle Rock." You know of one Castle Rock in Scotland, upon which this castle is mounted.

Perched on Castle Rock, Edinburgh Castle is the capital's historic fortress. Though it more than likely wasn't around in the time of the Vikings, as the first construction of a royal castle on the rock places origins in the 12th century, a settlement has existed on Castle Rock likely as early as the 2nd century AD. The Vikings traded and plundered the entire Anglo-Saxon region, including Scotland, taking honey, wool, wine, and textiles.

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