Lightning Bolt

Zeus's lightning bolt is the sole reason that Percy's life gets turned upside down. It begins and ends the story. It represents total power and the right to rule.

Poseidon's Trident

This is the three pronged weapon (looks like a harpoon with three prongs) that Percy's real father leaves in his cabin. Percy views it as a symbol of his father's presence.

Cabins

The cabins at Camp Half-blood indicate whose father or mother was a god/goddess and that the child has been claimed. There is also a cabin where children stay that haven't been claimed yet, which makes for a great deal of resentment.

Riptide

This is a magical ballpoint pen that turns into a sword for Percy Jackson. It is a gift from his father.

Yankee's Cap

Annabeth's mother, Athena, has gifted her with a Yankee's ballcap that will render her invisible. This...