Cain has assumed the mantle of leadership over the dragon riders. He plans on leading the reapers in a march against the guardians. Daniel is brought back to the guardians' stronghold, where they must all prepare to face the enemy in battle. Uriel reveals to them the implications of the Harvest, and the need to seek the assistance of the shape-shifters. As the days grow darker, alliances are forged and allegiances made known. And as the enemy draws closer, the guardians are forced to contend with the possibility of defeat.