A young aspiring engineer must first conquer her fear of failure.

George and Harold and their doubles, Yesterday George and Yesterday Harold, have been taking turns going to school, but when the doubles fall prey to their gym teacher, Mr. Meaner, and his method of mind control that turns students into attentive, obedient, perfect children, it is up to original George and Harold to strike back.

When a very important inventor needs rescuing, Freddie Ramos activates his special sneakers and becomes a superhero.

"Frankie Sparks, the self-proclaimed 'best inventor in the third grade,' does research and creates a tool to try to persuade her classmates that a rat would make the best class pet."--Publisher's description.

When Kristoff and the ice harvesters challenge Oaken and his new invention to a friendly contest, Oaken, Elsa, and Anna becomes embroiled in a mystery involving a missing ice harvesting machine.

"It is up to Nick Slate to find the last of Nikola Tesla's powerful inventions--or face devastating consequences"--

"Luthor the Doberman, a former attack dog, has a good home with Savannah Drysdale, but every time a certain truck passes he goes into a frenzy, while Griffin Bing is caught up in trying to beat his rival, Darren Vader, at an invention contest."--Provided by OCLC.

Ellie Ultra, third-grade superhero, is running for class president, and her opposition is her nemesis, Dex Diggs, who has got his hands on a wish machine--so when Ellie gets a glimpse of what would happen if Dex wins, she knows this is a fight for the soul and future of Winkopolis Elementary School.

On one boring Saturday, superhero Ellie Ultra uses her parent's invention, the Ultra Animator, to turn her favorite stuffed animal, Super Fluffy, into a living dog--but when she also accidentally animates a comic book supervillain, she and her new companion need to act fast to clean up the mess.

Superhero Ellie Ultra is given the responsibility of caring for Squeak, the class hamster, for the weekend, which is exciting, but also a little worrying, especially since her dog, Super Fluffy, is too interested in the hamster for comfort--but when she accidentally shrinks herself down to three inches tall Ellie discovers that, even for a superhero, pet sitting is a lot harder when you are no bigger than your pet.