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The Last Olympian
By Rick RiordanThe Last Olympian is the fifth book in Rick Riordans first series. The Second Titan War has begun, with the gods battling Typhon, Posiedon battling ancient ocean gods and monsters, and Camp Half-Blood and the demigods fighting Kronos’s armies. Percy has faced Kronos many times before, but it’s extremely difficult this time because Kronos is possessing Luke Castellan, His old friend and nemesis, and Percy’s girlfriend Anabeth’s older brother figure.