In Rick Riordan's "The Hammer of Thor," Annabeth expresses excitement about introducing someone named Percy. This indicates a significant relationship and hints at Percy's importance in the storyline. Annabeth's enthusiasm suggests that Percy is a central character who plays a crucial role in the adventures that unfold throughout the book.

This moment reflects the strong bonds and camaraderie among the characters in the series. As the narrative progresses, the dynamics between them, particularly between Annabeth and Percy, often drive the plot forward, showcasing themes of friendship and loyalty that resonate throughout Riordan's works.