In a city built upon the petrified remains of an ancient dragon, miner Wyatt Hughes discovers a forbidden heart-core that holds the last spark of a forgotten power. Hunted by the ruling Syndicate and carrying a relic that grows stronger by the hour, Wyatt and his unlikely ally Audrey must uncover the secrets buried within the dragon's bones before the core destroys them all. As they journey from the dark marrow tunnels to the hidden vaults of the Crest, they discover that the dragon's death was not the end-but the beginning of a truth powerful enough to change an entire kingdom.