The Prosperine River winds its way from the hilly heartlands of the Moonshade Expanse to the vast Alprenia Sea, serving as the lifeblood of trade, culture, and travel between the inland settlements and the coastal city of Brightwater. Wide, steady, and deep enough for river barges and small vessels, it carries grain from Highvale’s terraced farms, textiles and ceramics from Lerwick, and coal and forged goods from Yerlford’s rugged hills. Traders speak of the river as both a highway and a heritage—a shimmering thread that ties the region’s prosperity together.

Though its banks are mostly tame and dotted with well-worn docks and riverside paths, the Prosperine is not without its challenges. Shifting sandbars, seasonal flooding, and the occasional stubborn river beast keep ferrymen and traders wary—but for most, the river remains a blessing, its gentle current a daily rhythm that flows through the lives of all who call the area home.