When Rosie is unable to invent a contraption to help one of Aunt Rose's Raucous Riveters friends, she calls on classmates Iggy Peck and Ada Twist to help.

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 goverment agents have been pursuing them for two years and are about to catch up.

Baron von Bubbles (Bub) is a pug who wants nothing more than to help his human Bella in her craft projects for school, though he is a little apprehensive about the rocket she is making for the Inventor Challenge--so when he ruins the rocket while trying to get at Nutz the squirrel he needs to find a way to make it up to Bella.

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.

Griffin Bing and his friends are trying to locate Mr. Fielder's missing thirty million dollar lottery ticket, and thwart the local bully, Darren Vader, who wants to find it for himself--and Mr. Bing's latest invention may help.

Norton and his robot dog like to collect objects that they use to create new inventions, but they think there is no possible use for the flower they find on one of their walks.

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.

Ethan Cheeseman takes his children, ages eight, twelve, and fourteen, and Captain Jibby and crew, to the year 1668 to end an ancient family curse and save the children's mother, but damage to the time machine and the arrival of Mr. 5 complicate their return.

When a new kid named Eric Stone comes to Seaside High, he recruits Ryker and Jay to help create an invention for the National Science Competition. The three teens make a great team, but soon, strange accidents befall Hazmat and Emmi, and they grow suspicious of the new kid. Ryker and Jay insist that Eric is legit and accompany him to his secret lab to finish their project. Suddenly, their high-tech invention turns on them, and Eric is behind the controls!...

"With a plot combining science and the supernatural, four kids are caught up in a dangerous plan concocted by the eccentric inventor, Nikola Tesla"--