Sunken Dragon's Fair

Brimfaire used to be the kingdom's biggest festival, until a lord dug too deep looking for buried power and the ground swallowed the whole thing. Now the fairground stirs again: animated figurines shuffle through collapsed galleries, and something called the Bane of Dragons guards a treasure hoard nobody's found. A 3rd-level Shadowdark adventure with a full dungeon key, new monsters, new magic items, and a rumor table to get the party moving.