<P> In the Underworld , they meet Hades and Persephone . Though Percy tells Hades that he does not have the lightning bolt , Hades finds it hidden inside Luke 's shield , revealing that Luke is the lightning thief . Persephone knocks Hades unconscious with the lightning bolt to get her revenge on him for imprisoning her for all eternity and hands the bolt to Percy . However , because they only have three pearls , Grover remains with Persephone to allow Percy 's mother to leave . Percy , Annabeth , and Sally teleport to the Empire State Building but are attacked by Luke , who wants to destroy Mount Olympus to secure the demigods ' place as the new rulers of Western Civilization . After a fight across Manhattan , Percy defeats and apparently kills Luke and returns the lightning bolt to Zeus , who forgives Percy and allows Poseidon to briefly speak with his son . The film ends with Percy and Annabeth reuniting with Grover , furloughed from Hades and sporting a new pair of small horns that designate his promotion to Percy 's senior protector . Percy and Annabeth are reunited , and they nearly kiss but Annabeth tricks Percy and they continue to train . </P>
<P> In the Underworld , they meet Hades and Persephone . Though Percy tells Hades that he does not have the lightning bolt , Hades finds it hidden inside Luke 's shield , revealing that Luke is the lightning thief . Persephone knocks Hades unconscious with the lightning bolt to get her revenge on him for imprisoning her for all eternity and hands the bolt to Percy . However , because they only have three pearls , Grover remains with Persephone to allow Percy 's mother to leave . Percy , Annabeth , and Sally teleport to the Empire State Building but are attacked by Luke , who wants to destroy Mount Olympus to secure the demigods ' place as the new rulers of Western Civilization . After a fight across Manhattan , Percy defeats and apparently kills Luke and returns the lightning bolt to Zeus , who forgives Percy and allows Poseidon to briefly speak with his son . The film ends with Percy and Annabeth reuniting with Grover , furloughed from Hades and sporting a new pair of small horns that designate his promotion to Percy 's senior protector . Percy and Annabeth are reunited , and they nearly kiss but Annabeth tricks Percy and they continue to train . </P>
who took the lightning bolt in the lightning thief
who took the lightning bolt in the lightning thief
Luke
Luke