When pets go missing in Blue River Creek it is up to Ada to follow the scientific method by making a hypothesis, collecting data, and experimenting to find the missing animals.

A scientist bids goodnight to all of the tools and clutter in his laboratory in this variation on Goodnight moon.

Sam, Lucy, and Antonio have a new substitute teacher, who happens to be the great-great-grandson of Orson Eerie, the evil scientist whose spirit possesses and infects their elementary school--and the friends are afraid he may be trying to bring Orson back to life.

Ever since Victoria Franken brought her slime to life she and Goop have been great friends, but after realizing on Valentine's Day that while she had many friends, Goop only had her, she tries to create a new slime friend for him.

Ada Twist is a very curious girl who shows perseverance by asking questions and performing experiments to find things out and understand the world.

When, in the process of testing his newest time machine, Professor von Volt accidently brings a triceratops, Helen of Troy, Attila the Hun, Charlemagne, and Christopher Columbus to present day New Mouse City, it is up to Geronimo and his friends to return them all to their own times and places--without being eaten by a T-Rex or skewered by Trojan warriors.

"When scientist-in-the-making Madeline Little starts sixth grade, she soon learns that middle school is nothing like a perfect lab experiment--and that she now has to find the cure for her newly messed-up life"--

A cat, two guinea pigs, and a colony of brave sewer rats band together in order to save Freddy, a golden hamster, from an evil scientist who's discovered that Freddy can read and write, and plans to hamster-nap him in order to dissect his brain.

The evil Dr. Micron is in jail, but the scandal at TinkerTech has caused a lot of anti-robot feeling in Terabyte Heights, making life difficult for the ten-year-old robotics genius George Gearing and his robot buddy, Jackbot--especially since Micron is the only person who can help George restore his parents, and his price is a jail-break.

Ellie's scientist grandfather has discovered a way to reverse aging, and consequently has turned into a teenager--which makes for complicated relationships when he moves in with Ellie and her mother, his daughter.