The momentous final book in the New York Times #1 best-selling series Percy Jackson and the Olympians is now available in paperback.
All year the half-bloods have been preparing for battle against the Titans, knowing the odds are against them. Kronos is stronger than ever, and with every god and half-blood he recruits, his power only grows.

In this momentous final book in the New York Times best-selling series, the prophecy surrounding Percy's sixteenth birthday unfolds. And as the battle for Western civilization rages on the streets of Manhattan, Percy faces a terrifying suspicion that he may be fighting against his own fate.

"The clash of modern and classical worlds is both exciting and entertaining." --The New York Times Book Review

"Riordan masterfully orchestrates the huge cast of characters and manages a coherent, powerful tale at once exciting, philosophical and tear-jerking. The best-selling series' legions of fans will cheer their heroes on and rejoice in such a compelling conclusion to the saga."-- Kirkus Reviews (starred review)