The Spectral Blaze

The Spectral Blaze by Richard Lee Byers is the third novel set in the Brotherhood of the Griffon series.

"Aoth and the Brotherhood of the Griffon have succeeded in rescuing Tchazzar, the lost king of Chessenta and a formidable red dragon, and are rewarded with a contract to aid in his war with a powerful dracolich. But the more Aoth sees of the war, the more suspicious he becomes that the Brotherhood may be just a pawn in a cutthroat draconic game that puts whole kingdoms at risk—a game played for stakes of gold and blood. And the more he sees the game play out, the more he realizes that he will have to become a player in this most dangerous of games if he wants the Realms to remain free."