The Dwarve's end of the world

As most races do, the Dwarves have their own theory on how the world will end. In fact they believe the end times have already begun. They believe that when the three Original Races die than the world will wither and decay, because of this end of the world The Diminishing. The dwarves are hard set on this idea too. The Giants have already died, now the dragons are being hunted to extinction. After the dragons the only one to remain will the the Ire Tree, and when that too dies the world shall crumbled and wither and the end shall come.