Greyhawk was a sprawling city, but the rough wilderness of the Cairn Hills to the north curtailed its sprawl in that direction. Because of this, Yrag, Tenser, and Ehlissa had quickly left the city's suburbs behind and most of the furthest villages were passed after an hour and a half of walking. The most remote manor houses and fief-like hamlets were now heavily fortified, like small keeps. This was the borderland and beyond it was dangerous wilderness. Somewhere in the midst of that wilderness stood the lonely ruins of Castle Greyhawk.
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