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The Battle of Manhattan was the major battle that occurred in The Last Olympian and was the climactic final battle of the second Titan War.
It began with Morpheus putting the entire island of Manhattan to sleep. The Titans covered Manhattan in layers of magic. The cars on the New Jersey highway seemed to be moving at one mile per hour due to Kronos slowing time. Also, Hecate may have been helping by using magic, because it seemed like all the drivers were getting a subconscious message to turn away from any Manhattan exits. Since the wind gods (Aeolus, Boreas, Notus, Zephyrus) would keep Kronos' forces away from Olympus by the air, and the spirits of the Hudson and East river drowned all forces on the water, Kronos had to try a ground assault.
Kronos sends a fleet of speedboats which race to Manhattan by the Long Island Sound. Each speedboat was packed with Demigods that were against the gods in full Greek armor. At the back of the lead boat was the battle flag of Kronos.
Percy divides the campers to defend different sections.
- Michael Yew, takes the Apollo cabin to the Williamsburg Bridge.
- Katie, takes the Demeter cabin to the Brooklyn-Battery Tunnel.
- Connor Stoll, takes half of the Hermes cabin to the Manhattan Bridge.
- Travis Stoll, takes the other half of the Hermes cabin to cover the Brooklyn Bridge.
- Silena Beauregard, takes the Aphrodite cabin to the Queens-Midtown Tunnel. Fifth Avenue is on the way and one of Silena's sisters suggests using Givenchy, perfume and accessories against the monsters. It is unknown whether it was effective.
- Malcolm, takes the Athena cabin to the 59th Street Bridge. Originally Percy had called Clarisse's name, but the Ares cabin was at camp sitting out of the war (because Clarisse and Michael Yew had an argument over the camp's only war chariot stolen from one of the unknown quests mentioned in the series).
- Jake Mason, takes the Hephaestus and Dionysus Cabins to the Holland Tunnel.
- Thalia, takes the Hunters to the Lincoln Tunnel, a position that the campers could not defend due to lack of people. Clarisse was upset over losing the war chariot to Michael Yew of the Apollo cabin, so she refused to fight in the battle.
- Percy and Annabeth take care of the boats by making a deal with the rivers, giving them each half a sand dollar.
- On the second day of the battle Silena disguised as Clarisse takes the Ares cabin members into battle, but is ultimately killed by a drakon. After her death, Clarisse takes back control over her cabin and destroys the drakon, gaining the blessing of Ares in the process which makes her invincible for a short time.
- Percy Jackson and Annabeth Chase act as backup for any of the positions unable to hold their ground at any time of the battle.
- Will Solace, and a few of his cabin members heal wounded cabin members in the battle if needed.
Percy sends troops out to all entrances, while Annabeth executes Daedalus Twenty-Three (by a suggestion from Athena) to wake up the automatons in the disguise of statues inside the city to protect Olympus. Then Percy goes to meet the Hudson River spirit and East River Spirits. The gods ignore him at first, but Percy decides to spend his sand dollar as a bribe to the two river gods. After half is given to each, the two gods make sure nothing enters the rivers and sink the boats carrying the enemies. Percy and Annabeth then leave, heading toward the Apollo campers fending off some of the enemy army led by the Minotaur.
The Minotaur, angered by seeing Percy once again (having been beaten by a twelve year old Percy in The Lightning Thief), charges him. A battle between the two unfolds, leaving Percy the winner. Percy then kills off most of the monsters because he is nearly indestructible, having received the so-called Curse of Achilles by swimming in the River Styx. More enemies show up, along with Ethan Nakamura, the son of Nemesis, who stabs Annabeth in the shoulder while unintentionally aiming for Percy's Achilles' heel. Blackjack takes Annabeth away somewhere safe so she can recover, and Kronos shows up and begins to cross the Williamsburg Bridge, but is stopped when Percy floods and destroys the bridge at Michael Yew's suggestion. The bridge is destroyed, but Michael is nowhere to be found and is assumed dead. Percy gets a phone call and is told that Annabeth is severely hurt.
When he arrives, Will Solace, one of Apollo's sons, tries to heal her. Silena Beauregard decides that since she is no good at fighting, she should go and try to convince Clarisse to bring the Ares' cabin and fight, who chose not to fight because the Apollo's cabin received a chariot they thought they should have, similar to Achilles not fighting in the Trojan War because Briseis was taken from him. Grover shows up, telling Percy that he's convinced some nature spirits to fight for them and Olympus and Thalia arrives with the Hunters of Artemis to help defend Olympus from Kronos and his Titan Army.
Afterwards, Percy sleeps and dreams of Nico di Angelo. Nico tries to talk to his mother, Maria di Angelo, but Bianca di Angelo comes and tries to convince him not to. Nico ignores her and continues to try and reach his mother. Instead, he finds a horrible memory of his early childhood in which his mother is killed by Zeus, and because of his grudge against the Great Prophecy, Hades puts a curse on a young girl, who is known as the mummy in the attic of the Big House at Camp Half-Blood, that the Oracle, as long as Hades' children remain outcasts, she will never be able to take another mortal form and will instead rot away. Then, he dreams of Rachel at a beach. She writes his name in the sand, then convinces her dad to take her home because she believes Percy is in danger, promising to go to finishing school as a trade-off.
Percy is then woken by Thalia, who says a Titan wants to speak with him. It turns out to be Prometheus. He tries to get Percy to believe there is no hope of Percy beating Kronos but does not succeed. He then gives him Pandora's pithos, which conceals Hope, and instructs him to use it as a signal of surrender if need be. Percy then has a vision of Luke talking with Hermes when he was on the run with Thalia and Annabeth.
Attack of the Drakon
Percy soon sleeps again, and dreams of Poseidon's palace, with Tyson fighting, and the monsters staying at Aunty Em's Gnome Emporium; Medusa's old place. Kronos is suspicious of Percy's Achilles spot and tells Ethan Nakamura to remember what spot Annabeth protected from him, though Ethan does not seem to remember, as he wasn't aiming at any particular spot. Following this is another vision of how May Castellan came to be delirious, by trying to take the old Oracle's power. The Oracle had been cursed earlier by Hades, cursing Ms. Castellan as well. When Percy wakes, a full-scale battle is going on.
Percy rushes outside and takes on Hyperion, one of the Titans and the former god of the light in a fight meters away from Central Park's reservoir. After an intense sword duel against the Titan, eventually Percy wins by overwhelming his opponent with a powerful hurricane, at which point the satyrs turning Hyperion into a nice maple tree. Just as Percy finishes, the Clazmonian Sow soars through New York sent by Kronos. Percy wakes up some automatons like the Hermes statue and two Lions that were in front of the New York Public Library using Daedalus Twenty-three, telling them to attack it.
The automatons defeat the pig and Percy returns to the battle. There is another attack, but the campers win when the Party Ponies come to fight alongside them using paintball guns with celestial bronze powder mixed in. After the invading army retreats, Percy learns that the gods are losing against Typhon, and that Hephaestus and Dionysus are injured. A helicopter appears with Rachel Elizabeth Dare in it, but the pilot has fallen asleep, putting her in danger, Annabeth, Percy, and Guido (a pegasi and one of Blackjack's pegasi friends) go to save her and Annabeth stops and lands the helicopter while amazing Percy that she could fly a helicopter so easily.
Rachel tells Percy she had a vision, and that Percy is not the true hero mentioned in the Great Prophecy. Percy later dreams of the Underworld, where Nico tries to persuade Hades to help with the war. Hades refuses, and Percy starts to dream about the United Nations complex. Kronos and his army are occupying it, and Kronos reveals that he will not hold Luke's form forever. Kronos interrogates Ethan about Percy's weak spot, but Ethan denies his knowledge. Percy wakes up and finds that a gigantic drakon is attacking them, and Rachel tells them that a child of Ares will kill it. Percy, Annabeth, and Mrs. O'Leary (Percy's hellhound pet from Daedalus after Daedalus died in The Battle of the Labyrinth) try their best to battle the drakon. Suddenly, a girl in Clarisse's armor appears, leading the Ares kids into battle, but the drakon fatally attacks her with poisonous spray. It is quickly revealed (after being poisoned) that this girl is not actually Clarisse, but is Silena Beauregard disguised as Clarisse to inspire the Ares children to fight.
Silena, who is dying from her attack on the drakon, reveals that she was the spy by showing them her scythe charm. Because Luke had been kind to her years before, he set her up as the spy, offering not to harm Charles Beckendorf. He had broken this promise however and Silena had lost faith in him and felt guilt for betraying the camp, but continued to feed information to him because he was blackmailing her. Silena soon dies, thinking of Beckendorf. Clarisse's bitterness becomes unstoppable rage (just like Achilles going into unstoppable rage in the Trojan War after he heard his companion, Patrocolus, was killed by Hector) and she charges at Kronos' army without any armor to protect herself and goes on a killing spree against Kronos' army. Ares gives her his blessing and she becomes just as invincible as Percy, if not more so and she takes out the Lydian Drakon by plunging her spear into its body and snaps it, unleashing a surge of energy. She then drags the empty shell behind her and challenges anyone to face her, even calling Kronos a coward in the process. Percy arrives at Olympus and runs into Hestia. Rachel Elizabeth Dare speaks with Hestia about her fate, and tells Percy that his and her destinies are not entwined, cryptically mentioning her calling. When Hestia asks about Pandora's pithos, Percy considers surrender but then decides against it. He then decides to leave the pithos with Hestia, proclaiming that Hope survives best at the hearth. Hestia supports this decision. Percy then goes to the Hall of the Gods and sits on Poseidon's Throne to attract his attention, eventually convincing him to leave his underwater palace and help the other gods defeat Typhon who is getting closer to Olympus. (Poseidon protests that his game room would be destroyed). Poseidon reluctantly agrees but says that it will result in his palace being destroyed by the Titan of the sea, Oceanus. As Typhon enters the Hudson River, Tyson leading an army of Cyclopes emerge from the water and wrap Typhon up in chains and Poseidon uses his power to send him to Tartarus. Percy feels that this could turn the tide of battle when suddenly Thalia bursts in and tells Percy to come back down immediately. At the base of the Empire State Building outside the empty lobby, they find the campers, Hunters, and Party Ponies all being attacked in a surprise move by Kronos.
Kronos blasts Chiron into the side of a building and the wall collapses on him. Annabeth, Percy, and Thalia run to help him, and Annabeth, in her fury, attacks Kronos with her knife, which bounces off his skin and dislocates her injured shoulder. Nico, Hades, and Mrs. O'Leary appear from the Underworld to assist in the battle against Kronos. Paul Blofis and Sally Jackson appear as well, with Paul killing a dracaena and Sally firing a pistol at a Lastrygonian giant, which Nico later finishes off. As they fight, it becomes more and more clear that Kronos is struggling for control over Luke. When Hades, Demeter, and Persephone challenge Kronos, he tries to cut off Olympus from New York City, which would isolate it from the rest of the world by destroying the land bridge connecting Olympus to the Empire State Building. However, Kronos doesn't know that Annabeth Chase, Percy Jackson, and Thalia Grace are trailing him and Ethan Nakamura.
As Percy runs to the main palace (the Hall of the Gods), Thalia is pinned down by a statue of Hera that almost falls on Annabeth and is unable to continue moving because her legs are pinned under it. Percy confronts Kronos there and convinces Ethan that siding with Kronos is not good for him. Ethan thus attacks Kronos and dies in the process. A climactic swordfight breaks out between the two, where they seem evenly matched because of Kronos's chronokinetic powers, Luke's expert swordsmanship and Percy bearing the Curse of Achilles. When Kronos attacks Hephaestus's chair, it launches an explosion that briefly incapacitates Kronos so he orders for Ethan to attack for him, but Percy persuades Ethan to turn on Kronos based on the fact that Ethan's mother, Nemesis, is the Goddess of Balance, and Kronos ultimately knows no balance, only destruction. Ethan tries to attack Kronos, but the Curse of Achilles protects Kronos, who drops Ethan through Mount Olympus, dropping him back down to New York and killing him. Kronos returns to the fight, andPercy continually attacks Kronos as Typhon's rampage draws ever closer to New York City, being held back by the gods. Poseidon arrives as Typhon enters the Hudson River and together the gods defeat Typhon by pulling him down to Tartarus - Tyson and Briares led the charge alongside Poseidon, commanding a horde of Cyclopes.
Enraged at Typhon's defeat, Kronos furiously attacks Percy and violently disarms him with the first move that Luke taught Percy, then preparing to finally kill him. However, Annabeth interferes, reminding Luke that he promised not to let her get hurt years ago. Slowly, Luke overpowers Kronos, but Kronos starts to change into his former body. As Percy held Annabeth's knife in his hand ready to strike, Luke said that he had to do it himself because if Percy attacked, Kronos would try to defend himself. Percy remembers what Rachel Elizabeth Dare told him about not being the hero, so he gives the knife to Luke, who kills himself in order to destroy Kronos (that was how Percy played into the prophecy, his important decision was whether or not to give Luke Annabeth's knife). Kronos is scattered, hopefully unable to ever form a consciousness again, let alone a body. As Luke lies dying, he asks Annabeth if she loved him, and she replies that she only loved him like a brother. He breathes his last wish that there will be no more unclaimed demigods, and Percy promises to make sure it won't happen again.
Luke dies just as all of the gods arrive in the Hall of the Gods prepared to fight Kronos together in battle form but are stunned to see Luke already dead (Kronos essence dispersed), and Annabeth and Percy there battle weary. Soon after, Zeus calls for a council of the gods to decide what to do with the near destruction of Olympus and how to reward Percy, Annabeth, Grover, and Tyson.
The Fates come personally to retrieve Luke's body. The gods arrive and reward and honor each of the main heroes, ensuring that the deceased Hunters and demigods achieve Elysium; promoting Tyson to a general of the Cyclopes army under his father, Poseidon; making Grover Underwood a member of the Council of Cloven Elders and a Lord protector of the Wild; having Annabeth Chase become the official architect for Olympus and eventually offering Percy Jackson the chance to become a god and achieve immortality. However, he declines so he can have a "normal" life with Annabeth and his friends as a regular mortal - on the stipulation that the gods recognize every child they have, that all minor gods' children and Hades' children have a place at Camp Half-Blood, that no child is abandoned or made to feel abandoned, and that the peaceful Titans like Calypso are freed.
The gods (somewhat reluctantly) agree and Percy makes the gods swear on the River Styx for he believes that the gods can't hold on to their oath. Grover Underwood becomes a member of the Council of Cloven Elders, campers begin to be claimed more often, Hades and other gods receive their own cabins, and the number of campers increases exponentially. Rachel also becomes the new Oracle after the curse placed upon the old Oracle was lifted while going under the oath of being the new Oracle under the eye view of Phoebus Apollo (a part of Apollo that presidents over giving the oath of being a new Oracle to young maidens like Rachel Elizabeth Dare). After being the next Oracle, Rachel spoke the next Great Prophecy.
When they go back to Camp Half-Blood they are still building the cabins needed for the home of the minor gods' children such as Hecate, Morpheus and Hypnos. Annabeth and Percy get together after the battle because Percy's feelings are no longer in turmoil since Rachel became the Oracle.
- Although Percy makes the gods swear to free Calypso, she is still known to be imprisoned on her island in The House of Hades, and does not escape until the end of The Blood of Olympus, a mistake Percy admits to Leo Valdez, stating that he should have checked to ensure the gods kept their word.
- In the Son of Magic, Alabaster states that 16 demigods were killed in total on Camp Half-Blood's side, while over 1000 demigods in Kronos' army were killed in the battle.