Franny tries to follow her mother's suggestion to change her appearance, but by turning hair styling into a science experiment she creates some very greedy pigtails that terrorize the town.

A hyper-curious young girl tries a series of wacky experiments, such as seeing if a piece of bologna will fly like a frisbee and determining whether seedlings will grow if watered with expensive perfume, and then must suffer the consequences of experiments gone awry.

"Super-smart kid inventors Nick and Tesla Holt have outsmarted crooks, spies, and kidnappers, but now its time to crack their biggest mystery yet: where the heck are their parents? With the help of their eccentric Uncle Newt, the twins trace the clues to their missing Mom and Dad, scientists working on solar-power research for a clandestine government project. Theyll need all their wits, along with an assortment of homemade gadgets, to outsmart the...

"After foiling a gang of kidnappers and fending off an army of robots, 11-year-old siblings Nick and Tesla Holt could use a little rest! But as their third mystery opens, they discover there's a spy in their midst, searching for secrets in the home of their beloved (and slightly crazy) Uncle Newt. Is it the new laboratory assistant? The exterminator? The housekeepers? Or someone completely unexpected? To expose the mystery agent, Nick and Tesla must...

When her embarrassing middle name is revealed at school, mad scientist Franny K. Stein experiments with time in order to return to the past and give herself a more dignified name.

Making a terrible discovery at the stream about a mysterious threat that is endangering its magical creatures, Zoey and Sassafras race against time to discover the source of the problem and save the Merhorse species.

Buzz takes a job at the toy store, but his experiments start to go a little too far.

Cece and her classmates use physics to build treat dispensers for Cece's dog, Einstein. Includes glossary and activities using the forces of push and pull.

Marsha tries scientific experiments to attract friends she can invite to her birthday party, but concludes that the best way to draw others is by being herself.

"Hollywood has come to Half Moon Bay as kid inventors Nick and Tesla find themselves on the set of a big-budget superhero movie. But someone's sabotaging the on-screen debut of their favorite comic book hero, so the brother and sister sleuths must sneak behind the scenes to save the show. Luckily, they have help from an arsenal of homemade special-effects gadgets. This cinematic saga includes instructions for creating camera gear, stunt dummies, make-up...