Best friends Raymond and Graham decide to reinvent themselves when they go to Camp Grizzly over the summer.

Fred and Anthony are shipped off to Camp Plenty Wampum where, after unexpectedly stumbling upon a portal to the Netherworld, they encounter a friendly Heinie Goblin, whom they bring back to camp.

Having returned for her second year at Camp Lakeview, Natalie finds herself feeling jealous of a new camper from California who seems to be even more sophisticated and glamorous that Natalie, herself.

When summer arrives, Humphrey, the pet hamster of Longfellow School's Room 26, is surprised and pleased to learn that he will be going to Camp Happy Hollow.

Separated from her friends by different bunkhouses and activities, and worried that a classmate will reveal that she is a nerd at home, Sarah's second summer at Camp Lakeview gets even worse when an injury and an attentive boy interfere with her reputation as the camp's star athlete.

Eleven-year-old Riley Liston tries to fit in at Camp Olympia, a summer sports camp where he is one of the youngest boys.

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.

At Camp Whatsitooya, twins Joules and Kevin and new friend Nelson face off against large, rabbit-like creatures from the Mallow Galaxy who thrive on sugar, but are not above hypnotizing and eating human campers.

Now reunited with her real family, eleven-year-old Fern goes to a camp to learn to practice the Anybody magic, where she unexpectedly faces the evil Mole, who has imprisoned the mysterious Nobodies in his factory basement

During four weeks of summer camp Sofia Becker writes all the juciest information in her notebook, so she can continue her blog when she returns home.