The Copper Tower (dungeon)
A 2-4 hour stand-alone dungeon designed for a party of four 3rd-level adventurers. A mysterious tower made of copper stands in the clearing. An odd black form rests on the very top. You approach the tower¸ which upon closer inspection appears to be more of a giant copper cylinder rather than any tower you have seen before. Along ground level is a large oaken double-door. Pushing the door open¸ you are greeted by intense cold and darkness. The beam of light cutting into the darkness from where you open the door reveals a floor made from ice. Like a lake frozen over in the depths of winter.