In "The Blood of Olympus" by Rick Riordan, a significant moment occurs between Percy and Annabeth, where Percy expresses his affection for her, signaling a resolution to their long-standing rivalry. He states, "The rivalry ends here," illustrating a turning point in their relationship. This moment conveys a strong sense of closure and emotional depth as they confront their past conflicts. Percy's declaration of love for Annabeth, referred to affectionately as "Wise Girl," emphasizes the strong bond they share. It marks the conclusion of their adversities and suggests a new beginning characterized by love and unity rather than competition. This sentiment encapsulates the themes of growth and reconciliation prevalent throughout the series.