Deep beneath the shimmering surface of the PEARLBROOK river, a mysterious civilization of aquatic folk awaits you. PEARLBROOK introduces an additional game board: the river board. You send your ambassador to the river to collect new resources: pearls. You can also find new forest creatures and buildings in the river! Gather enough pearls to construct the most impressive wonders and decorations, making your city the pride of EVERDELL! This is an expansion for the EVERDELL board game.