All year the halfbloods have been preparing for battle against the Titans, knowing the odds are against them. Kronos is stronger than ever, and with every god and halfblood he recruits, his power only grows. In this momentous final book in the New York Times bestselling 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. Ean: 9781423101505