After learning that he is the son of a mortal woman and Poseidon, god of the sea, twelve-year-old Percy is sent to a summer camp for demigods like himself, and joins his new friends on a quest to prevent a war between the gods.

"Beloved characters from the Magnus Chase and the Gods of Asgard series star in these hilarious and inventive new short stories, each set in a different one of the Nine Worlds from Norse mythology"--

What dangers do runaway demigods Luke and Thalia face on their way to Camp Half-Blood? Are Percy and Annabeth up to the task of rescuing stolen goods from a fire-breathing giant who doesn't take kindly to intruders? 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.

Your quest begins! Use your demigod skills in this interactive and customizable adventure story written by New York Times #1 bestselling author Rick Riordan. Combining four short stories, The Two-Headed Guidance Counselor, The Library of Deadly Weapons, My Demon Satyr Tea Party, and My Personal Zombie Apocalypse, your choices will have consequences in this first interactive demigod adventure.

Ever since the gods of ancient Egypt were unleashed in the modern world, Carter Kane and his sister Sadie have been in trouble. As descendants of the House of Life, the Kanes have some powers at their command, but the devious gods haven't given them much time to master their skills at Brooklyn House. Now their most threatening enemy yet, the chaos snake Apophis, is rising. If they don't prevent him from breaking free in a few days' time, the world...

When Apophis, the chaos snake, threatens to plunge the world into eternal darkness, siblings Carter and Sade Kane plan to use an ancient spell to destroy the snake, but first must rely on the murderous ghost of a powerful magician.

"A guide to ancient Egyptian deities and creatures and Carter and Sadie Kane's world of magic." --

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 have gone dark. What is affecting the Oracles, and how can Apollo do anything about them without his powers? After experiencing a series of dangerous--and frankly,...

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 two demigods sacrificed in Athens. She needs their blood -- the blood of Olympus -- in order to wake. The demigods are having more frequent visions of...

"In response to an awful camp orientation video created by the god Apollo, Percy Jackson and other residents of Camp Half-Blood answer campers' questions such as "What is this place?" and "Do I get to keep the T-shirt?" --