A twelve-year-old boy, worried that his parents may divorce, discovers that an island in the middle of the lake where he is spending the summer is the testing grounds of the mysterious Dr. Libris, who may have invented a way to make the characters in books come alive.

As the new computer lab teacher tries to bring Ella Mentry School into the twenty-first century with her peculiar inventions, second-grader A.J. struggles to survive without sugary snacks when Principal Klutz bans junk food.

When Mr. Cheeseman and his three "smart, polite, and relatively odor-free" children journey to the not-so-distant past, they meet something utterly surprising--the alternate versions of themselves.

Ethan Cheeseman and his children, ages eight, twelve, and fourteen, hope to settle in a nice small town, at least long enough to complete work on a time machine, but spies and government agents have been pursuing them for two years and are about to catch up.

"A.J. and the gang from Ella Mentery School start a company to sell their brand new invention-a heated, scented, talking toilet seat!"--

"Sabrina Sue wants to fly like all the other birds she sees in the sky. Will her flying machine invention be what she needs, or will she find another way to soar?"--

Ten-year-old Harold, the adopted son of a food inventor, discovers that his father's latest invention, soda pop that produces the world's longest burps, also generates furry creatures known as Fizzies.

The young inventor, Rube Goldberg, enlivens his day off by building incredibly complex chain-reaction machines to solve simple, everyday problems--like playing fetch with your dog in the yard without ever actually leaving your room.

Rosie Revere is no stranger to flops and fails, kerfuffles and catastrophes. After all, engineering is all about perseverance! But this time, Rosie has a really important project to tackle--one that feels much bigger than herself. Rosie's beloved Aunt Rose and her friends, the Raucous Riveters--a group of fun-loving gals who built airplanes during World War II--need help inventing something new. And Rosie is just the engineer for the job! After one...

When a freak spring blizzard buries Starwood Park, Freddie works with Mr. Vaslov to clear the sidewalks using a new invention--Zapato Power snowshoes. But not even the snow can stop a thief from causing trouble in the neighborhood. Can Freddie solve the case, even if it means helping Erika, the Starwood Park bully?