The Entire Percy Jackson Timeline Explained

Percy and his friends, now 16, fight for their lives and the fate of Mount Olympus while New York City snoozes in «The Last Olympian,» the fifth book in the series. Percy draws on all of the powers he’s developed and the connections he’s made. The determined teen rallies friends, enemies, campers, and gods to defend Mount Olympus from Kronos, Luke, and their assembled army of Titanic terrors.

A spell is cast to put New York City to sleep for the duration of the battle. To be stronger for the fight, Percy matches what Luke has done and bathes in the River Styx, leaving only one vulnerable area — his version of an Achilles’ heel. It is thought that Percy is the subject of The Great Prophecy, but when he confronts Luke, it becomes apparent that Luke is who the prophecy foretold of. Luke stabs himself in his own Achilles’ heel, thereby sacrificing himself to stop Kronos and save Olympus.

Later, Zeus is feeling as generous as a god who once tried to kill a bunch of tweens can feel. He offers Percy the chance to become immortal like a full god — and is annoyed when Percy refuses. Instead, Percy wants his fellow demigods to be fully recognized and housed at Camp Half-blood, not left to languish in an unclaimed cabin. He kisses Annabeth, and chooses to live his life as a demigod in the mortal world.