When forced to choose between safety with the dragon organization Talon and being hunted forever as an outcast, Ember Hill chose to stand with Riley and his band of rogue dragons rather than become an assassin for Talon. She's lost any contact with her twin brother, Dante, a Talon devotee, as well as Garret, the former–enemy soldier who challenged her beliefs about her human side.

As Ember and Riley hide and regroup to fight another day, Garret journeys alone to the United Kingdom, birthplace of the ancient and secret Order of St. George, to spy on his former brothers and uncover deadly and shocking secrets that will shake the foundations of dragons and dragon-slayers alike, placing them all in imminent danger as Talon's new order rises.