From publisher blurb: The Walled City of Vandosia sits on the bay and is surrounded on three sides by water. One of the more interesting features of this city is its massive sewer system that keeps water and waste flowing out of the city. Rumors have it that these tunnels are home to special problems of its own. Are your players ready to brave the gritty underside of Vandosia? This adventure setting was designed for the 5th Edition AD&D for the Filbar Campaign for several different levels of adventurers. This adventure is easily adaptable to most any game and system.