Iris Slone enters the soldier trials seeking redemption for the past she cannot forget. Haunted by loss and determined to prove herself, she finds purpose in the flames that now answer to her command. Yet the fire inside her is unpredictable, and every spark threatens to consume more than she is willing to lose. Harvey Warren has spent his life guarding his heart behind duty and discipline. As a soldier bound to a dragon forged from shadow, he has learned that emotion is weakness. But when Iris steps into his world, her defiance and strength begin to unravel the careful order he's built. As war approaches and dragons rise once more, Iris and Harvey are forced to fight for the kingdom that shaped them and for the bond that could destroy them. Together they must decide if their power will save their world or burn it to ash.