Black Wyvern (5E)

From publisher blurb: The village of Black Wyvern has prospered from the surrounding woodland, producing high quality lumber for shipbuilding and the finest sea chests for a hundred miles. Founded by a retired pirate captain and his crew, who drove the Bone Snapper orcs from the site, the new villagers soon found something much worse lurking among the trees. Now, nearly 20 years later, the captain and most of his crew are long dead and the surviving inhabitants must pay a dark price for their wealth, forced into a twisted pact that allows them to harvest the forest’s bounty.