Where the Hammer Fell

The great dragon bore him ever higher, so that the Dwarven King knew his fate. Taking a grip on the hammer of his house the king smote the dragon such a blow that it ended the beast's life, but before it fell the creature turned on the King, vomiting ash and flame upon the warrior so that his life too was ended. The force of their struggle took them deeper into the mountains to find what tomb few can say, but the hammer fell directly to earth and tore such a gap in it that the land filled with water afterward and made a lake for all time. 

Beneath its waters the hammers lies....