"Claudia's not worried when she hears her newest baby-sitting charge, Betsy Sobak, is a great practical joker. After all, how much harm can one little girl do? Plenty. Claudia breaks her leg as a result of one of Betsy's mean jokes... and now she's talking about quitting the club. Baby-sitting, she says, is just too dangerous. Kristy thinks Betsy needs to be taught a lesson. She also thinks the Baby-sitters are just the ones to do it. Watch out, Betsy...

When her mother's remarriage takes her family into a much wealthier neighborhood, thirteen-year-old Kristy finds herself surrounded by snobbish girls who compare clothes, make fun of the Baby-sitters Club, and insult her aging dog.

Middle-schooler Eric, who lives near Coney Island, discovers a magic ink that brings his monster drawings to life.

After encountering a Jersey Devil while on a field trip to the Pine Barrens, Elliot and his new friend Uchenna help their weird teacher Professor Fauna rescue the mythological creature from a pair of greedy billionaire brothers.

Dr. Bunsen is just trying to help. Really, he is. This time, when Dr. Bunsen overhears the kids complaining about all their chores, he lends an extra hand by creating clones out of Gabe, Laura, and Cesar! But when the clones start acting out and Bunsen s solution goes haywire, can the kids undouble the DATA Set trouble?

Eleven-year-old Rick Ramsey has generally gone along with everybody, just not making waves, even though he is increasingly uncomfortable with his father's jokes about girls, and his best friend's explicit talk about sex; but now in middle school he discovers the Rainbow Spectrum club, where kids of many genders and identities can express themselves--and maybe among them he can find new friends and discover his own identity, which may just be to opt...

Thanks to Dr. Bunsen's latest wacky invention, second-graders Gabriel, Laura, and Caesar, aka the DATA Set, are blasted back to the prehistoric era, where they quickly find themselves dashing from flying pterosaurs, stomping stegosaurus stampedes, and a sharp-toothed T-rex.

"Jamie and Tess can't wait to return to their secret world of dinosaurs for a new adventure. But they'll have to be careful. The last thing they want is to get in the way of a herd of stampeding Triceratops!"--

Otto Waddle Junior High School is worse than ever. Tip and his geeky friends Mindy, Owen, and Xen have finally come into their superpowers--well, their mediocre powers--and now have a whole new cast of impersonators to take on. Their foursome is being challenged by a rival group of students who are pawns in Darth Susan's evil plot against them. If middle school has any chance of survival, Tip and his friends must take their unusual powers to a whole...

Mrs. Bell challenges her science students to invent their own robots but when they start malfunctioning it becomes up to the DATA Set to deprogram the machines before an army of robots take over the school.