Kathir's Redemption, Book Six of the Dragon Stone Saga
The orc plague has spread across the land, routing the dwarf clans from their ancestral home. The dwarves must turn to the dragon riders for help, hoping to reclaim Mount Velik and save the clans. Untold lives are at stake. Are the dragon riders strong enough to lift off the spirit of death from Mount Velik, and defeat the evil that lies within those ancient caverns, or will they all be destroyed?