Call to War (The Chronicles of Avantia Series #3)

Avantia burns in the fires of war. Derthsin's evil armies swarm the land, and Tanner and the Chosen Riders are all that stand in their way.

Will they encounter more Beasts on their treacherous journey to the Southern Caves? And will the dark forces that seek control of Tanner prevent the Riders from fulfilling their destiny?