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The Blood of Olympus Summary. Picking up after the events of House of Hades, our heroes are divided into two groups. The first group is made up of Jason, Piper, and Leo (along with Percy, Annabeth, Frank, and Hazel). They're on the Argo II and they need to make it to the Acropolis stat.

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At the conclusion of The Mark of Athena, Annabeth and Percy tumble into a pit leading straight to the Underworld. The other five demigods have to put aside their grief and follow Percy’s instructions to find the mortal side of the Doors of Death. If they can fight their way through the Gaea’s forces, and Percy and Annabeth can survive the House of Hades, then the Seven will be able to seal the Doors both sides and prevent the giants from raising Gaea. But, Leo wonders, if the Doors are sealed, how will Percy and Annabeth be able to escape?

They have no choice. If the demigods don’t succeed, Gaea’s armies will never die. They have no time. In about a month, the Romans will march on Camp Half-Blood. The stakes are higher than ever in this adventure that dives into the depths of Tartarus

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Annabeth is terrified. Just when she’s about to be reunited with Percy—after eight months of being apart, thanks to Hera—it looks like Camp Jupiter is preparing for war. As Annabeth and her friends Jason, Piper, and Leo fly in on the Argo II, she can’t blame the Roman demigods for thinking the ship is a Greek weapon. With its steaming bronze dragon masthead, Leo’s fantastical creation doesn’t appear friendly. Annabeth hopes that the sight of their praetor Jason on deck will reassure the Romans that the visitors from Camp Half-Blood are coming in peace.

And that’s only one of her worries. In her pocket Annabeth carries a gift from her mother that came with an unnerving demand: Follow the Mark of Athena. Avenge me. Annabeth already feels weighed down by the prophecy that will send seven demigods on a quest to find—and close— the Doors of Death. What more does Athena want from her?

Annabeth’s biggest fear, though, is that Percy might have changed. What if he’s now attached to Roman ways? Does he still need his old friends? As the daughter of the goddess of war and wisdom, Annabeth knows she was born to be a leader, but never again does she want to be without Seaweed Brain by her side.

Narrated by four different demigods, The Mark of Athena is an unforgettable journey across land and sea to Rome, where important discoveries, surprising sacrifices, and unspeakable horrors await. Climb aboard the Argo II, if you dare…

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In The Lost Hero, three demigods named Jason, Piper, and Leo made their first visit to Camp Half-Blood, where they inherited a blood-chilling quest:

Seven half-bloods shall answer the call,
To storm or fire the world must fall.
An oath to keep with a final breath,
And foes bear arms to the Doors of Death.

Who are the other four mentioned in the prophecy? The answer may lie in another camp miles away, where a new camper has shown up and appears to be the son of Neptune, god of the sea…

With an ever-expanding cast of brave-hearted heroes and formidable foes, this second book in The Heroes of Olympus series offers all of the action, pathos, and humor that Rick Riordan fans crave.

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Jason has a problem. He doesn’t remember anything before waking up on a school bus holding hands with a girl. Apparently she’s his girlfriend Piper, his best friend is a kid named Leo, and they’re all students in the Wilderness School, a boarding school for “bad kids.” What he did to end up here, Jason has no idea—except that everything seems very wrong.

Piper has a secret. Her father has been missing for three days, and her vivid nightmares reveal that he’s in terrible danger. Now her boyfriend doesn’t recognize her, and when a freak storm and strange creatures attack during a school field trip, she, Jason, and Leo are whisked away to someplace called Camp Half-Blood. What is going on?

Leo has a way with tools. His new cabin at Camp Half-Blood is filled with them. Seriously, the place beats Wilderness School hands down, with its weapons training, monsters, and fine-looking girls. What’s troubling is the curse everyone keeps talking about, and that a camper’s gone missing. Weirdest of all, his bunkmates insist they are all—including Leo—related to a god.

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The novel opens with Percy Jackson on a drive with Rachel Dare. He is approached by Charles Beckendorf, and the two head off to attack Luke's ship, The Princess Andromeda. Kronos, hosted in the mortal body of Luke, is not caught off guard because of a spy at Camp Half-Blood, and Beckendorf is killed. Percy awakens later in his father's underwater palace, which is under siege by the Titan Oceanus. Percy wants to help fight alongside his father, but Poseidon sends Percy back to Camp Half-Blood to hear the "Great Prophecy." Once there, Percy informs the camp of the spy and learns that the Olympians are occupied fighting Typhon. That night, Percy leaves with Nico di Angelo, son of Hades, following a lead on how to defeat Kronos. After visiting Luke's mother in Westport, Connecticut, and talking with Hestia, Percy procures a blessing from his mother. He then descends into the underworld to bathe in the River Styx and take on the curse of Achilles. Despite being betrayed by Nico in exchange for information on the boy's mother, Percy is successful and uses his new invulnerability to defeat a small army of Hades's minions. Percy emerges from the Underworld in New York City, leaving Nico behind to convince his father to join the fight against Kronos. Percy calls the campers to help defend Olympus, as the gods refuse to end their struggle with Typhon. Just before the battle begins, New York City is affected by a powerful sleeping spell from Morpheus, Hecate, and Kronos himself. Despite being joined by Thalia's Hunters of Artemis, the Party Ponies, and a few other allies; the Olympian army struggles to hold back repeated assaults by the Titan army. Camp Half Blood suffers approximately 16 casualties, out of an original 40 campers. Annabeth herself is badly injured when she saves Percy from an attack by Ethan Nakamura that would have hit Percy in his Achilles point. Even after these setbacks, Percy still refuses a chance to surrender offered by Prometheus, and entrusts the titan's gift of Pandora's pithos to Hestia. The campers successfully defeat Hyperion, and Kronos becomes even more enraged. Rachel Dare, who has been experiencing inexplicable moments of prophecy, arrives to warn Percy of a deadly drakon that can only be killed by a child of Ares and that he is "not the hero". The campers do poorly against the enemy until Silena Beauregard arrives disguised as Ares's head counselor Clarisse and breaks the cabin's boycott of the war. The real Clarisse arrives in a fury and kills the drakon by herself. As Silena lies dying, due to the drakon, the campers learn that she was the camp's spy, but chose to right her wrongs after her boyfriend Beckendorf's death.
Percy contacts his father and explains to Poseidon that Kronos is playing on their divisions; he reluctantly agrees. Driven back to the blocks surrounding the Empire State building, Percy and his friends make their last stand to protect Mount Olympus. Even when Hades arrives with Nico and an army, Kronos still manages to enter Olympus. Percy attacks Kronos, without either side gaining a significant advantage. In an Iris message-vision, the combatants are able to see Typhon approaching New York, only to be defeated with the aid of Poseidon and his cyclopes. Ethan Nakamura also rebels against Kronos's expectations, but is killed. When Kronos attacks Annabeth, Luke is able to regain control of his body and, with Percy's help, he injures himself at his mortal point and successfully banishes Kronos to the void. As he dies, Luke tells Percy that Ethan had the right idea: it was unclaimed children and unrecognized gods that really brought this war upon them. He dies peacefully, and the Fates themselves carry his body away.
The gods grant rewards to several heroes who were instrumental in defeating the Titans, including Thalia, Grover, Annabeth, Tyson, Clarisse, and Nico. Finally, Percy is called forward. Zeus offers him the greatest gift of all time: immortal godhood. Much to the Olympians' shock, Percy instead asks the gods to swear on the River Styx that they will claim all demigods by the time they turn thirteen, have cabins and thrones built for all the minor gods and Hades, and give amnesty to innocent Titans and their former allies. Percy also relieves Zeus, Poseidon, and Hades of their oath to not have demigod children. After the meeting, Percy discovers Rachel plans to become the new Oracle, he rushes to camp with Annabeth and Nico. He fears that a curse placed on the Oracle's spirit by Hades (in revenge for Zeus's murder of Nico's mother) is still in place. With Apollo's supervision, Rachel safely becomes the new Oracle and speaks the next Great Prophecy. The novel ends shortly after Annabeth celebrates Percy's birthday and the two begin dating. The gods are keeping to their new promises, and Camp Half-Blood is slowly returning to normal. The many fallen demigods are honored with the end-of-summer's bead.[6

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The Battle of the Labyrinth is the fourth book of the Percy Jackson and the Olympians series written by Rick Riordan. The story tells of Annabeth Chase as she leads her friends in a quest to find the inventor of the infamous Labyrinth when they discover its role in a dark plot against the camp by Kronos' Army.

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The book tells the story of the adventures of the fourteen-year-old demigod Percy Jackson as he and his friends go on a dangerous adventure. In this quest, they have to rescue his friend Annabeth and the Greek goddess Artemis, who have both been kidnapped.

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The Sea of Monsters is an American fantasy-adventure novel based on Greek mythology written by Rick Riordan and published in 2006. It is the second novel in the Percy Jackson & the Olympians series and the sequel to The Lightning Thief. This book chronicles the adventures of thirteen-year-old demigod Percy Jackson as he and his friends rescue his satyr friend Grover from the Cyclops Polyphemus and save Camp Half-Blood from a Titan's attack by bringing the Golden Fleece to cure Thalia's poisoned pine tree.

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Twelve-year-old Percy Jackson is on the most dangerous quest of his life. With the help of a satyr and a daughter of Athena, Percy must journey across the United States to catch a thief who has stolen the original weapon of mass destruction — Zeus' master bolt.

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The Stonekeeper's Curse. Emily, her brother Navin, and their mother are in a very dangerous situation. ... Navin goes into hiding with his mother, and Emily goes to Demon's Head Mountain with a new friend called Leon. They need to find a Godoba tree, the fruit of which will heal Emily's mother.

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After the tragic death of their father, Emily and Navin move with their mother to the home of her deceased great-grandfather, but the strange house proves to be dangerous.

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Amy's ventriloquist dummy, Dennis, keeps losing his head...for real. So Amy begs her family for a new dummy. That's when her dad finds Slappy in a local pawnshop. Slappy's kind of ugly, but Amy's having fun practicing her new routine. Then terrible things start happening. Horrible, nasty things. Just like what happened the first time. Because there's something odd about Slappy. Something not quite right. Something evil...

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Jordan Keppler is looking forward to a nice, quiet day at Carnival World. He may not love the scary rides like his sister, Karla, but he'll still go on them with her. But Jordan and Karla are about to experience something much more terrifying. There's a boy in a cage hidden away in a secret part of the park. And he's begging for some food. The sign next to him says PLEASE DO NOT FEED THE WEIRDO. What harm could it do, though? Jordan and Karla are about to find out what it's like to deal with an endless appetite.

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Boone and Heather are psyched for summer camp. The legends of man-eating snakes and disappearing campers are hisss-terical! Sure, it's strange that the camp lotion makes their skin peel, but there's a good explanation, right? Right?

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How ugly is Carly Beth's Halloween mask? It's so ugly that it almost scared her little brother to death. So terrifying that even her friends are totally freaked out by it. It's the best Halloween mask ever. It's everything Carly Beth hoped it would be. And more. Maybe too much more. Because Halloween is almost over. And Carly Beth is still wearing that special mask