Of Dawn and Embers. The Fireborn Epic, #3

He rides a dawnling, a steed of light and glory, destined to restore. Jakim Ha'Nor will save his people, or so says the prophecy that upended his life and drove his brothers to betray him. Now, he has returned as the dawnrider to fulfill his purpose and reconcile with his brothers-only to find himself embroiled in a war. Captured in the fallout of a deadly attack, Rafi grapples with the ghosts of the past.
His brother is alive but no longer himself, and Rafi will stop at nothing to save him. Farther up the coast, Ceridwen strives to reignite the embers of the rebellion to burn the empire down. When Rafi is sentenced to execution before the imperial court, Ceridwen must rally every spear and steed she can for a blistering strike at the heart of the capital. But the empire's schemes are already in motion, and Jakim's two missions collide when an unexpected encounter with one of his brothers reveals the true threat behind the imperial thirst for ancient secrets.
Hidden forces intend to unleash a cataclysmic power, spurring Ceridwen, Rafi, and Jakim to challenge the full, crushing might of the empire for the fate of the world. Stars weep and ash falls as the tides of battle propel the Fireborn queen, the Sea-Demon prince, and the Dawnrider priest toward a meteoric clash in this thunderous series finale.