When Camp Half-Blood, the only safe haven for demigods, comes close to being overrun by mythological monsters, Percy must find his best friend Grover, who is prisoner on an island in the Bermuda Triangle, and then set out to save the Camp.

The life of a ten-year-old boy in rural Virginia expands when he becomes friends with a newcomer who subsequently meets an untimely death trying to reach their hideaway, Terabithia, during a storm.

Lena is Trille's best friend, even if she is a girl. And there is never an ordinary day when you've got a best friend like Lena.
Hardly a day passes without Trille and Lena inventing some kind of adventure that often ends in trouble. Whether it's coaxing a cow onto a boat or sledding down the steepest and iciest hill with a chicken, there is always a thrill—and sometimes an injury—to be had. Trille loves to share everything

...

When Philippa learns that the new girl at school, Daisy, is her reluctant fairy godsister, Philippa tries to use her customary three wishes constructively.

Before: Ethan was always up for a laugh, always willing to accept a dare, always ready for a baseball game with his big brother, Roddie, or an adventure with his best friend, Kacey. Now: Ethan's family is escaping Boston for the small town of Palm Knot, Georgia. But Ethan's not sure he'll ever escape the memories of the accident that cost him everything. When Ethan meets Coralee, a girl with a big personality and even bigger stories, he starts to...

"Jake and Lily are twins and have always felt the same--like two halves of one person--but the year they turn eleven and Jake begins hanging out with Bump Stubbins, everything changes"--

Dismayed when his neighbors cut down a beloved old walnut tree that has always been a source of comfort, Alder forges an unexpected friendship with the new girl next door over a series of mysterious connections.

The friendship of tall Gollie and short Bink is tested by Gollie's queenly airs, a lack of pancakes, and their shared profile in a book of record holders.

Dani, who is staying with her grandparents, decides to take the trip on her own to see Ella for her birthday.

Gabby is taking the new contemporary dance class at Ms. Marianne's Academy of Dance, and she quickly bonds with Sophie, who has transferred into the Academy--but her best friends seem strangely reluctant to include Sophie in their after class fun, and soon Gabby feels torn between her new friend and her old ones whose attitude she does not understand.