Tears of a Dragon, the fourth and final installment in the Dragons in Our Midst series, picks up right after Billy and Bonnie's hard-won victory in Circles of Seven, which came at a huge cost as a vicious evil was unleashed on the earth that only the dragons can defeat. With Billy's father, the great Clefspeare, missing, Billy and Bonnie must lead the dragons into war against the Watchers, demonic beings as old as the earth itself.
Masters in the art of deception, the Watchers gather most of humanity to their side. A remnant of wise humans, the friends of the dragons, unites in the struggle against the Watchers. The final battle between dragons and their enemies comes to a climax with heart-stopping action. In order to win the war, at least one of the dragons must die.
As the story comes to a close, Billy and Bonnie face the greatest decision of their lives: Will they keep the dragon traits that have cost them so much danger and heartache, or will they turn to normal human life and end the slayers' lust for their blood forever?