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 catastrophic war between the gods.

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.

To stop the invation of Kronos's army, Percy and his demigod friends must set out on a quest through the Labyrinth.

A horrific family tragedy sends sixteen-year-old Jacob journeying to a remote island off the coast of Wales, where he discovers the crumbling ruins of an old orphanage that was home to children who were more than just peculiar, but possibly dangerous--and who may still be alive. Illustrated with vintage found photographs.

"Who cut off Medusa's head? Who was raised by a she-bear? Who tamed Pegasus? It takes a demigod to know, and Percy Jackson can fill you in on the all the daring deeds of Perseus, Atalanta, Bellerophon, and the rest of the major Greek heroes. Told in the funny, irreverent style readers have come to expect from Percy -- Provided by publisher.

Welcome, boys and girls, readers of all ages, to the first-ever Library Olympiad! Kyle and his teammates are back, and the world-famous game maker, Luigi Lemoncello, is at it again! This time Mr. Lemoncello has invited teams from all across America to compete in the first ever LIBRARY OLYMPICS. Will it be fun? Like the commercials say ... HELLO? It's a Lemoncello! But something suspicious is going on ... books are missing from Mr. Lemoncello's library....

A horrified boy discovers he has head lice and tries some wild remedies to get rid of them.

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.

"To win Mr. Lemoncello's new television game show, Kyle and his team have to break out of their comfort zone and walk a mile in other characters' shoes and figure out how to unlock a series of locks and break out of the game before their competition!"--

Thirteen-year-old brilliant but socially-challenged Stewart and mean-girl Ashley must find common ground when, two years after Stewart's mother died, his father moves in with his new girlfriend--Ashley's mother, whose gay ex-husband lives in their guest house.