Underneath The Crooked Moon: Olmarsh

The roiling black ocean of Druskenvald is unnatural, mysterious, and treacherous.
Olmarsh stretches along miles of rocky shoreline and flooded salt marshes, and encompasses numerous islands that dot the waters off the coast. A shadow hangs over the province and slithers up from below, gripping its people in a paranoia of the unknown.

The people of the province live a simple life, beyond a meager existence limited by the scarce resources of the land. But there is a constant threat from the watery depths. Waiting underneath the surface.