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2 Half-bloods.
Percy, Thalia, and Annabeth travel to Westover Hall to find two half-bloods and bring them back to camp. -
Dr. Thorn.
Dr. Thorn, a monster, tries to kidnap Percy and the two half-bloods but Annabeth sacrifices herself for them and everyone believes she is dead except for Percy. -
The Hunters.
Artemis and her group of immortal hunters save Percy and his group of half-bloods and calls her brother Apollo to drive them to safety. -
Ophiotaurus
After Percy finds out that the aquatic animal named the Ophiotaurus has the power to destroy Olympus, he decides to keep it safe. -
Reunion.
The group finds Artemis who had been kidnapped and they fought Luke and Atlas while Artemis had been chained up and literally held the weight of the sky. -
Bianca gone.
Bianca doesn't listen to directions but sacrifices her life for Percy. -
Prophecy.
Thalia decides she doesn't want the prophecy to be hers and joins the Hunters, leaving it to Percy. -
Annabeth goes home.
Annabeth goes home to San Francisco even though it is dangerous for a half-blood. -
Returns Home.
Percy returns home with his mother.
