She’s a fallen princess. He’s the guard who betrayed his orders to save her. Together, they might just change the fate of a kingdom. In 1920s Castilverde, a crumbling monarchy faces the wrath of its people. When a deadly coup shatters the royal court, Princess Isabella de Borja barely escapes with her life. Rescued by Mateo Serrano, a fiercely loyal captain of the Royal Guard. Bound by duty and pursued by enemies, they vanish into the wilds of Spain, forced to survive in hiding. But in exile, duty begins to blur into desire. Isabella, once confined by palace walls, discovers the weight of her people’s suffering and the fire of her own will. Mateo, raised to protect the crown at all costs, finds himself torn between tradition and the woman who stirs something deeper than loyalty. As unrest spreads and enemies close in, whispers of Isabella’s return spark hope in a broken nation. But claiming the throne comes with a price, and ancient laws forbid her from marrying a commoner. To rule, she must abandon her heart. To love, she must forsake her crown. And when Mateo’s long-lost betrothed returns with secrets of her own, the fragile bond between protector and princess is tested like never before. Their love was never meant to be. But perhaps it is exactly what their kingdom needs. A story of forbidden love, shattered kingdoms, and one woman’s fight to reclaim her legacy, Isabella de Borja is a sweeping historical romance of passion, sacrifice, and defiance set against the vibrant backdrop of a Spain on the brink of revolution.