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.

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.

Demigod Percy Jackson, still with no memory, and his new friends from Camp Jupiter, Hazel and Frank, go on a quest to free Death, but their bigger task is to unite the Greek and Roman camps so that the Prophecy of Seven can be fulfilled.

When dinosaur bones from a recent dig mysteriously go missing, and an unidentifiable beast starts attacking animals and people, leaving their mangled bodies behind, Abigail and her eccentric employer R. F. Jackaby, investigators of the supernatural in 1892 New England, find themselves hunting for a thief, a monster, and a murderer.

While the Olympians struggle to contain the rampaging monster Typhon, Kronos begins his advance on New York City, where Mount Olympus stands virtually unguarded. Now it's up to Percy Jackson and an army of young demigods to stop the Lord of Time.

Kate, Michael, and Emma have passed from one orphanage to another in the ten years since their parents disappeared to protect them, but now they learn that they have special powers, a prophesied quest to find a magical book, and a fearsome enemy.

"After the monster apocalypse, Jack Sullivan has been having an awesome time living in a tree house with his three best friends. But when zombies start mysteriously disappearing, Jack and his friends suspect that an extremely evil force is at work"--

When a goo monster crashes the science fair, the Princess in Black is on the job, and with the help of the Princess in Blankets, sets out to save the science fair.

Yeva knows that the forest holds secrets and that her father is the only hunter who's ever come close to discovering them. Out in the wilderness there's no pressure to make idle chatter with vapid baronessas, or to submit to marrying a wealthy gentleman. When her father goes missing in the woods, Yeva sets her sights on one prey: the Beast he'd been obsessively tracking just before his disappearance. As Yeva hunts, she finds a cursed valley, a ruined...

How do you handle an encounter with Medusa on the New Jersey interstate? What's the best way to take down a minotaur? Become an expert on everything in Percy's world with this must-have guide to the Percy Jackson and the Olympians series. Complete with interviews, puzzles, games, and original short stories by Rick Riordan.