Jason, Piper, and Leo, three students from a school for "bad kids," find themselves at Camp Half-Blood, where they learn that they are demigods and begin a quest to free Hera, who has been imprisoned by Mother Earth herself.

"London, 1953. Louise is still adjusting to her postwar role as a housewife when she discovers a necklace in a box at a secondhand shop. The box is marked with the name of a department store in Paris, and she is certain she has seen the necklace before, when she worked with the Red Cross in Nazi-occupied Europe--and that it holds the key to the mysterious death of her friend Franny during the war. Following the trail of clues to Paris, Louise seeks...

Tacky the penguin and his friends go to Camp Whoopihaha where they scare each other by telling ghost stories around the campfire, never expecting that one of the frightening stories will come true.

Danny and his friend the dinosaur go to summer camp together.

"The Greek and Roman demigods will have to cooperate in order to defeat the giants released by the Earth Mother, Gaea. Then they will have to sail together to the ancient land--Greece itself--to find the Doors of Death"--

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.

"Homer the dog goes away to wolf camp to learn how to bring out his inner wolf"-- Provided by publisher.

"School's out for summer! A.J. can't wait to spend his days playing video games, watching TV, and forgetting everything he learned during the school year. But when his parents announce they've signed him up for sleepaway camp, his great plans slip away right before his eyes. Now he's stuck at Camp Ahdoanwanna with his friends. Between the mosquitoes and bees, animals that break into the cabins, and a moose head that guards the mail, this is definitely...

Princess Courtney, a modern princess, has her world turned upside down when she switches places with Erika, a famous rock star. Two very different worlds collide when a mix-up sends Princess Courtney to Camp Pop and Erika to Camp Royalty. While the leaders of the rival camps try to correct the mix-up, both Courtney and Erika learn to adjust to the different worlds and have fun while making new, unexpected friends.