Knighthood of the dragon - Chris Bunch

When he first dreamed of riding a dragon to war, Hal Keilas was laughed at. Yet the war between the kingdoms of Deraine, Sagene and Roche compelled a solution daring beyond their people's wildest dreams. Now Hal and his comrades have unleashed the power of the dragons and have driven their enemies before them. The might of Roche lies unbroken but Hal, the Dragonmaster, knows that the war and the killing have only begun.

In the sequel to the enthralling STORM OF WINGS, Hal finds himself pitted against a foe that not even a flight of dragons may be able to destroy...