JASON HAS A PROBLEM. He doesn’t remember anything before waking up in a bus full of kids on a field trip. Apparently he has a girlfriend named Piper, and his best friend is a guy named Leo. They’re all students at the Wilderness School, a boarding school for “bad kids," as Leo puts it. What did Jason do to end up here? And where is here, exactly? Jason doesn't know anything—except that everything seems very wrong.

PIPER HAS A SECRET. Her father has been missing for three days, ever since she had that terrifying nightmare about his being in trouble. Piper doesn’t understand her dream, or why her boyfriend suddenly doesn’t recognize her. When a freak storm hits during the school trip, unleashing strange creatures and whisking her, Jason, and Leo away to someplace called Camp Half-Blood, she has a feeling she’s going to find out, whether she wants to or not.

LEO HAS A WAY WITH TOOLS. When he sees his cabin at Camp Half-Blood, filled with power tools and machine parts, he feels right at home. But there’s weird stuff, too—like the curse everyone keeps talking about, and some camper who's gone missing. Weirdest of all, his bunkmates insist that each of them—including Leo—is related to a god. Does this have anything to do with Jason's amnesia, or the fact that Leo keeps seeing ghosts?

Join new and old friends from Camp Half-Blood in this thrilling first book in The Heroes of Olympus series. Best-selling author Rick Riordan has pumped up the action, humor, suspense, and mystery in an epic adventure that will leave readers panting for the next installment.

PERCY IS CONFUSED. When he awoke from his long sleep, he didn't know much more than his name. His brain fuzz is lingering, even after the wolf Lupa told him he is a demigod and trained him to fight with the pen/sword in his pocket. Somehow Percy manages to make it to a camp for half-bloods, despite the fact that he has to keep killing monsters along the way. But the camp doesn't ring any bells with him. The only thing he can recall from his past is another name: Annabeth.

HAZEL IS SUPPOSED TO BE DEAD. When she lived before, she didn't do a very good job of it. Sure, she was an obedient daughter, even when her mother was possessed by greed. But that was the problem—when the Voice took over her mother and commanded Hazel to use her "gift" for an evil purpose, Hazel couldn't say no. Now because of her mistake, the future of the world is at risk. Hazel wishes she could ride away from it all on the stallion that appears in her dreams.

FRANK IS A KLUTZ. His grandmother says he is descended from heroes and can be anything he wants to be, but he doesn't see it. He doesn't even know who his father is. He keeps hoping Apollo will claim him, because the only thing he is good at is archery—although not good enough to win camp war games. His bulky physique makes him feel like an ox, especially in front of Hazel, his closest friend at camp. He trusts her completely—enough to share the secret he holds close to his heart.

Beginning at the "other" camp for half-bloods and extending as far as the land beyond the gods, this breathtaking second installment of the Heroes of Olympus series introduces new demigods, revives fearsome monsters, and features other remarkable creatures, all destined to play a part in the Prophesy of Seven.

Annabeth is terrified. Just when she's about to be reunited with Percy, it looks like Camp Jupiter is planning for war. And that's only one of her worries. In her pocket, Annabeth carries a gift from her mother that came with an unnerving command: 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. Annabeth's biggest fear, though, is that Percy might have changed. What if he's now attached to Roman way and no longer needs his old friends?

Narrated by 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.

The demigod crew of the Argo II is standing at a crossroads. They could return home with the Athena Parthenon statue and try to stop Camp Half-Blood and Camp Jupiter from going to war. Or they could continue on their quest to find the House of Hades, where they might be able to open the Doors of Death, rescue their friends Percy and Annabeth from Tartarus (if they have survived), and prevent monsters from being reincarnated in the mortal world. Whichever road they decide to take, they have to hurry, because time is running out. Gaea, the bloodthirsty Earth Mother, has set the date of August 1 for her rise of power.

Join the demigods of the prophecy as they face their biggest challenges yet in The House of Hades, the hair-raising penultimate book in the best-selling Heroes of Olympus series.

Nico had warned them. Going through the House of Hades would stir the demigods' worst memories. Their ghosts would become restless. Nico may actually become a ghost if he has to shadow-travel with Reyna and Coach Hedge one more time. But that might be better than the alternative: allowing someone else to die, as Hades foretold.

Jason's ghost is his mother, who abandoned him when he was little. He may not know how he is going to prove himself as a leader, but he does know that he will not break promises like she did. He will complete his line of the prophecy: To storm or fire the world must fall.

Reyna fears the ghosts of her ancestors, who radiate anger. But she can't allow them to distract her from getting the Athena Parthenos to Camp Half-Blood before war breaks out between the Romans and Greeks. Will she have enough strength to succeed, especially with a deadly hunter on her trail?

Leo fears that his plan won't work, that his friends might interfere. But there is no other way. All of them know that one of the Seven has to die in order to defeat Gaea, the Earth Mother.

Piper must learn to give herself over to fear. Only then will she be able to do her part at the end: utter a single word.

Heroes, gods, and monsters all have a role to play in the climactic fulfillment of the prophecy in The Blood of Olympus, the electrifying finale of the best-selling Heroes of Olympus series.

Young demigods, your destiny awaits!

You must prepare yourself for a difficult future: fighting monsters, adventuring across the globe, and dealing with temperamental Greek and Roman gods. In this top secret colelction of four never-before-told stories, character portraits and interviews, maps, diagrams, and puzzles from Camp Half-Blood Senior Scribe Rick Riordan, you'll join your favorite demigods from the Percy Jackson and the Heroes of Olympus series as they face dangerous foes and perilous tasks. What you learn from their experience could very well save your life!

Magic, monsters, and mayhem abound when Percy Jackson and Annabeth Chase meet Carter and Sadie Kane for the first time. Weird creatures are appearing in unexpected places, and the demigods and magicians have to team up to take them down. As they battle with Celestial Bronze and glowing hieroglyphs, the four heroes find that they have a lot in common--and more power than they ever thought possible. But will their combined forces be enough to foil an ancient enemy who is mixing Greek and Egyptian incantations for an evil purpose? Rick Riordan wields his usual storytelling magic in this adrenaline-fueled adventure.