In "The Lightning Thief" by Rick Riordan, the protagonist, Percy Jackson, discovers that he is the son of Poseidon, the ancient Greek god of the sea. This revelation introduces him to a world filled with mythological creatures and gods. Throughout his journey, Percy learns about his identity and the responsibilities that come with being a demigod. His adventures lead him to confront various mythical challenges that test his bravery and cunning.
Percy's lineage is highlighted by titles such as "Earthshaker," which refers to Poseidon's power over earthquakes, and "Stormbreaker," indicating control over storms. Additionally, the title "Father of Horses" symbolizes Poseidon's role as the creator of horses in mythology. By embracing his heritage, Percy not only gains confidence but also strengthens his resolve to protect his friends and fight against looming threats in both the mortal and divine realms.