When the goddess Artemis disappears while hunting a rare, ancient monster, a group of her followers joins Percy and his friends in an attempt to find and rescue her before the winter solstice, when her influence is needed to sway the Olympian Council regarding the war with the Titans.

Every seven years there is a hunt offering mortal descendents of gods the opportunity to claim their divinity by killing any of nine immortals made mortal for one night. Lore Perseous has no desire to participate in the Agon, embittered because her family was killed by a rival who then ascended to godhood. When a childhood friend asks her to help, and a wounded god offers an alliance, Lore overlooks the steep cost of this decision in exchange for...

After learning that the father he never knew is Poseidon, God of the Sea, Percy Jackson is transferred from boarding school to Camp Half-Blood, a summer camp for demigods, and becomes involved in a quest to prevent a war between the gods.

Jason, Piper, and Leo, three students from a school for "bad kids, " find themselves at Camp Half-Blood, where they learn that they are demigods and begin a quest to free Hera, who has been imprisoned by Mother Earth herself.

"Meet Phoebe Katz, a twelve-year-old foster kid from New York City who's been bounced around the system her entire life. Things happen around Phoebe, but it's not like they're her fault! But when a statue of Athena comes to life, Phoebe gets the stunning news she's the daughter of Zeus, has a twin brother named Perseus--and was sent away from ancient Greece as a baby to stop a terrible prophecy that predicted she would one day destroy Olympus. Athena...

The Greek god Apollo, cast down to earth as the ungifted human teenager Lester Papadopoulos, and his demigod friends must go through the Labyrinth to find the third emperor--and an Oracle who speaks in word puzzles--somewhere in the American Southwest.

It's not easy being Apollo, especially when you've been turned into a human and banished from Olympus. On his path to restoring five ancient oracles and reclaiming his godly powers, Apollo (aka Lester Papadopoulos) has faced both triumphs and tragedies. Now his journey takes him to Camp Jupiter in the San Francisco Bay Area, where the Roman demigods are preparing for a desperate last stand against the evil Triumvirate of Roman emperors. Hazel, Reyna,...

Achilles and Hector lay siege to the home of the gods, inadvertently triggering a massive conflict between humanity and such powerful beings as Setebos, Prospero, and Caliban.

"The otherworldly Karou struggles to come to terms with who and what she is, and how far she'll go to avenge her people"--

The long-awaited prophecy surrounding Percy Jackson's sixteenth birthday unfolds as he leads an army of young demigods to stop Kronos in his advance on New York City, while the Olympians struggle to contain the rampaging monster, Typhon.