DragonStone
From Dragons Exodus
The DragonStone is the oldest relic of the lands, said to bring immortality to those who touch it. Its origins are obscure, but many ancient legends speak of the ancient stone and its winged dragon guardian. The earliest known historical reference to it is when Brennan, the First in the Line of the Priest Kings of City of Brennar brought it from the mountains of Sandor. Centuries, Corin-Mur the Dragon attacked the city and brought it low, taking away the stone. It was reclaimed by Caimen, Archinus, Kells and Giga who then ascended to Godhood.
It remained in Caimen's hands until it was shattered in the moment of his defeat by Phaisith. Corin-Mur fled, wounded and has not returned. Perhaps he would one day return seeking vengence for the destruction of what was once his.