The president of Kprshtskan is plotting to infiltrate the science fair at Hubble Middle School in Maryland in order to take over the United States government, but when Toby Harbinger, an ordinary student, makes up his mind finally to win the fair, the terrorists' plans go awry.

Froggy is nervous about his first day of school, but, even though it's hard to sit still, he has a wonderful time.

"Best friends Dave and Julia were determined to never be cliche high school kids--the ones who sit at the same lunch table every day, dissecting the drama from homeroom and plotting their campaigns for prom king and queen. They even wrote their own Never List of everything they vowed they'd never, ever do in high school. Some of the rules have been easy to follow, like #5, never die your hair a color of the rainbow, or #7, never hook up with a teacher....

When they hear that their teacher, Mr. G., is cutting off his ponytail and picking up a suit, the students jump to the wrong conclusion, until Katie finds out what is really happening when she turns into Mr. G.

Mary, Patrick, Winter, and Dez are determined to win the unofficial Senior Week Scavenger Hunt, but throughout the afternoon and evening Mary encounters the demons she and her friends have faced as high school "also-rans," and ponders what her college and future will bring.

When a teenaged girl with a bad reputation is murdered in New York City's Central Park after a party, her childhood friend is determined to solve the mystery of who caused her death.

"Rhiannon is disappointed that her neglectful boyfriend Justin doesn't remember the one perfect day they shared, until a stranger tells her that the Justin she spent that day with, the one who made her feel like a real person... wasn't Justin at all"-- Provided by publisher.

When Katie's interest in cheerleading and Suzanne's jealousy threaten to cause a full-fledged spirit war to break out in class 4A, the magic wind switches Katie into the body of a real cheerleader, at the top of a pyramid.

When Horrible Harry's pet cat, Googer, sneaks a ride and gets into the school building, third-graders Harry and Doug have to catch him before anyone else does, which means going into some forbidden places.

A real author is coming to visit Mrs. Green's class.