Crown of Water and Wisdom (Percabeth AU)

In a world where the kingdoms of Atlantis and Celestaris stand on the brink of collapse, Prince Percy Jackson of Atlantis and Princess Annabeth Chase of Celestaris are thrust into an alliance neither desires. With their kingdoms struggling against external threats and internal strife, a politically motivated marriage is the only solution to unite their realms.
As tensions rise, assassins lurk in the shadows, and rebels threaten to upend their fragile peace, Percy and Annabeth must navigate a treacherous landscape of loyalty and betrayal. With the weight of their people on their shoulders, they find themselves torn between duty and their growing attraction. Can they overcome their differences and forge a bond strong enough to withstand the storm, or will the forces against them tear apart their kingdoms-and their hearts?