It is summer vacation, and Jamie, Angeline, and Isabella need money so that they can go to Screamotopia Amusement Park, but none of their money-making schemes are very profitable.

In this final book in the series, the seventh graders of McQuarrie Middle School and their Star Wars-inspired Origami finger puppets go on a field trip to Washington, D.C., on what proves to be a very long trip full of shifting alliances, betrayals, carsickness, and sugar rushes.

Eleven-year-old Andi Carillo quickly becomes the star of her school's new co-ed tennis team, and when her talent attracts sports agents who want her to play professionally, Andi's best friend Jeff Michaels helps her thwart the agents by uncovering their underhanded schemes.

The continuing adventures of seventh-grader Mackenzie Blue as she tries to juggle her time and attention between a developing crush, the school musical, her family, and her friends.

Jamie writes in her diary (among other things) about feeling forced into a friendship with a girl with whom she doesn't want to be friends at all.

Bullied at school, eighth-grader Apple, a Filipino American who loves the music of the Beatles, decides to change her life by learning how to play the guitar.

Ross is a normal boy who must face an extraordinary situation. One day, he is diagnosed with eye cancer, and from that moment on, his life will change completely. He will discover that there are parts of him that will be altered, but also his friends, his schoolmates, his family, will all look at the child with cancer as a weirdo, and only he can make the most important decision possible, prove to himself and others that he is able to write his own...

After a fight at school leaves Marcus facing suspension, Marcus's mother takes him and his younger brother, who has Down syndrome, to Puerto Rico to visit relatives they do not remember or have never met, and while there Marcus starts searching for his father, who left their family ten years ago and is somewhere on the island.

Nikki Maxwell is determined to help out her crush Brandon save an animal shelter. So Nikki and her friends Chloe and Zoey enter an ice skating competition to help raise money for the shelter, but (big surprise) Mackenzie has to stick her nose in and cause trouble.

Brainy twelve-year-old Bart attracts little attention at his new middle school near Hollywood, California, but whenever he can get around his gym-coach father, he secretly hunts electricity-guzzling aliens.