As the weakest lovebird beast-kin, Wren is disdained by her family and her arrogant phoenix fiancé Reynard. He gives her an unhatchable iron egg to call off their bond, mocking her futile effort. Secretly a rare Soul Mender, Wren nurtures the egg, which unexpectedly cracks open. It holds Castor Selnaris, the lost ancient dragon commander. Entangled with the royal prince’s fatal curse, a hidden human girl, and dark conspiracies from the Voidlands, Wren soon becomes the dragon’s destined mate. Yet dangerous secrets, royal moles and bitter rivals loom, waiting to shatter their fated bond.
