When demonic cheerleaders invade his high school, Percy Jackson hurries to Camp Half Blood, from whence he and his demigod friends set out on a quest through the Labyrinth, while the war between the Olympians and the evil Titan lord Kronos draws near.

"Percy Jackson is about to be kicked out of boarding school ... again. And that's the least of his troubles. Lately, mythological monsters and the gods of Mount Olympus seem to be walking straight out of the pages of Percy's Greek mythology textbook and into his life. And worse, he's angered a few of them. Zeus's master lightning bolt has been stolen, and Percy is the prime suspect. Now Percy and his friends have just ten days to find and return Zeus's...

Four short stories plus original art, interviews, puzzles, and games, reveal new insights into the world of Percy Jackson and the other heroes of Olympus.

After Iris creates rainbow slides that allow her to get to Earth from Mount Olympus quickly, she becomes a courier in high demand.

Perseus and the Olympians face off against the snake-haired Medusa.

Despite being the muse of epic poetry, Calliope has trouble putting her bright and fun ideas into action.

Pandora is famous among her classmates at Mount Olympus Academy for being curious, but when one of the godboys brings a mysterious box to school, her curiosity about what is inside it will create more trouble than she could have imagined.

Athena learns that she is a goddess when she is summoned to Mount Olympus by her father, Zeus, and she must quickly adjust to her new status, make friends with the other godboys and goddessgirls, and catch up with all the studies she missed while attending mortal school.

When things start to go wrong after Nyx, goddess of the night, enrolls at Mount Olympus Academy, she has to determine who is responsible for a series of disasters while trying to change the other students' minds about nighttime.

Caught in the middle of an ancient power struggle, Emily and Pegasus must venture to Diamond Head volcano in Hawaii to track down the one thing that can save Olympus--before the Titans get there first.