In the third installment of the Beneath the Quiet series, the world of secrets, betrayal, and forbidden love reaches its most dangerous turning point.Prince Seiya has spent his life bound by duty, never knowing that his greatest love, Merelyn, left behind a hidden son. When Arthur is revealed as his child, the truth shatters the palace walls and sends shockwaves through the kingdom. But joy quickly turns to peril: Sypherin, a ruthless shadow network, moves to claim Arthur as their weapon, while a traitor within Seiya's own council feeds the enemy from within.As political alliances crumble and assassins strike at the heart of a royal summit, Arthur must step out of the shadows and embrace the destiny he never asked for. Seiya, for the first time, fights not as prince or crown heir, but as a father determined to protect his only child.Caught between blood and crown, love and power, survival and sacrifice, they must face a single, unyielding truth: some vows demand everything.