From the publisher: Create reservoirs, cisterns, and tanks full of aquatic monsters with e-Adventure Tiles: Sewer Chambers. Knock your gaming group’s plate mail wearing tank/fighter into the water and see if he can swim. Will the rest of the group jump in to save him? And will they be smart enough to keep their mouths closed? Gross! e-Adventure Tiles: Sewer Chambers provides 25 tiles with large water filled areas and narrow ledges. Details include rusty metal bridges, drainage pipes, and submerged grates.