To avenge the massacre of his wingless clan, Eli, the last Resonant, deliberately steps into the path of Ronan, the feared Blackflame Dragon King. Ronan takes him from a slave auction and locks him inside Obsidian Keep “for his protection,” unaware that Eli chose him as the weapon that could destroy the corrupt Dragon Court. But their forbidden heart-scale bond turns manipulation into desire and suspicion into devotion. When the throne demands Eli’s life as a sacrifice and the Court unleashes an ancient dragon tide, the prisoner and his captor must choose: obey a kingdom built on blood, or burn its laws to the ground and claim a crown—and a future—together.
