Annabeth is terrified. Just when she’s about to be reunited with Percy—after six 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...

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"....

When Percy Jackson receives an urgent distress call from his friend Grover, he immediately prepares for battle. He knows he’ll need his powerful demigod allies, Annabeth and Thalia, at his side; his trusty bronze sword, Riptide; and . . . a ride from his mom. The demigods race to the rescue...

After saving the world multiple times, Percy Jackson is hoping to have a normal senior year. Unfortunately, the gods aren’t quite done with him. Percy will have to fulfill three quests in order to get the necessary three letters of recommendation from Mount Olympus for college....

Who cut off  Medusa’s head? Who was raised by a she-bear? Who tamed Pegasus? And whatever happened to that Golden Fleece? It takes a demigod to know the answers, and Percy Jackson can fill you in on all the daring deeds of  Perseus, Atalanta, Bellerophon, and the rest of the major Greek...

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...

In his continuing quest to earn college recommendation letters from the gods, Percy has to pet sit the goddess Hecate's polecat and giant mastiff during Halloween week. What could go wrong?

Though the Greek and Roman crewmembers of the Argo II have made progress in their many quests, they still seem no closer to defeating the earth mother, Gaea. Her giants have risen-all of them-and they're stronger than ever. They must be stopped before the Feast of Spes, when Gaea plans to have...

New York Times #1 best-selling authors Rick Riordan and Mark Oshiro collaborate again on a new adventure in which Nico di Angelo teams up with his half-sister Hazel Levesque to protect . . . monsters?

Zeus has punished his son Apollo--god of the sun, music, archery, poetry, and more--by casting him down to earth in the form of a gawky, acne-covered sixteen-year-old mortal named Lester. The only way Apollo can reclaim his rightful place on Mount Olympus is by restoring several Oracles that...

Magnus Chase has always been a troubled kid. Since his mother's mysterious death, he's lived alone on the streets of Boston, surviving by his wits, keeping one step ahead of the police and the truant officers. One day, he's tracked down by an uncle he barely knows-a man his mother claimed was...

Dr. Kane brings siblings Carter and Sadie together for a "research experiment" at the British Museum, where he hopes to set things right for his family. Instead, he unleashes the Egyptian god Set, who banishes him to oblivion and forces the children to flee for their lives....

The fifth and final installment of the #1 New York Times bestselling Trials of Apollo series has Lester and Meg returning to where it all began: Camp Half-Blood. At last, the breathtaking, action-packed finale of the #1 bestselling Trials of Apollo series is here! Will the Greek god Apollo, cast...

Book three in the #1 New York Times bestselling Trials of Apollo series. The formerly glorious god Apollo, cast down to earth in punishment by Zeus, is now an awkward mortal teenager named Lester Papadopoulos. In order to regain his place on Mount Olympus, Lester must restore five Oracles that...

He's b-a-a-ack! Despite their best efforts, Carter and Sadie Kane can't seem to keep Apophis, the chaos snake, down. Now Apophis is threatening to plunge the world into eternal darkness, and the Kanes are faced with the impossible task of having to destroy him once and for all.

Demigods Nico di Angelo and Will Solace must endure the terrors of Tartarus to rescue an old friend in this thrilling adventure co-written by New York Times #1 best-selling author Rick Riordan and award-winning author Mark Oshiro....

Young demigods, brace yourselves for a peak inside the highly classified Demigod Files! Compiled by Camp Half-Blood's senior scribe, Rick Riordan, these top secret archives include three of Percy Jackson's most perilous adventures and behind-the-scenes interviews with your favorite...

Magnus Chase, a once-homeless teen, is a resident of the Hotel Valhalla and one of Odin's chosen warriors. As the son of Frey, the god of summer, fertility, and health, Magnus isn't naturally inclined to fighting. But he has strong and steadfast friends, including Hearthstone the elf, Blitzen...

How do you punish an immortal? By making him human. After angering his father Zeus, the god Apollo is cast down from Olympus. Weak and disoriented, he lands in New York City as a regular teenage boy. Now, without his godly powers, the four-thousand-year-old deity must learn to survive in the...

Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds...