"Young Violet's only friend is her dog, Orville, until one of her homemade flying machines takes her to the rescue of a Boy Scout troop in trouble."--Title page verso.

In the summer of 1851, with encouragement and ideas provided by his family, an inventor builds a working submarine and takes his family for a ride. Includes notes about Lodner Phillips, the real inventor on whom the story is based.

"Fifth-grader Sammy Hayes-Rodriguez struggles to fit in when his inventor mother requires him to take her latest creation, a robotic 'brother,' to school with him to learn to become a student"--

Jabari is making a flying machine all by himself, but when it doesn't work the way he imagined, he learns about perserverance and problem-solving.

"Frank Einstein (kid-genius scientist and inventor) and his best friend, Watson, along with intelligent robots Klink and Klank once again find themselves in competition with T. Edison, their classmate and archrival--this time in the quest to unlock the power behind the science of energy"--

"Frank Einstein (kid-genius, scientist, and inventor) and his best friend Watson, along with Klink (a self-assembled artificial-intelligence entity), and Klank (a mostly self-assembled and artificial almost intelligence entity), once again find themselves in competition with T. Edison, their classmate and archrival--this time in the quest to unlock the power behind the science of the human body"-- Provided by publisher.

In 1867 Texas, Jett, a girl passing as a boy while seeking her long-lost twin brother, joins forces with Honoraria Gibbons, an inventor, and White Fox, a young Army scout, to investigate a zombie army that is terrorizing the West.

Conor Broekhart was born to fly. In fact, legend has it that he was born flying in a hot air balloon at the world's fair. In the 1890's Conor and his family live on the sovereign Saltee Islands, off the Irish coast. Conor spends his days studying the science of flight with his tutor and exploring the castle with the king's daughter, Princess Isabella. But the boy's idyllic life changes forever the day he discovers a conspiracy to overthrow the king....

It’s the year 2071 and eleven year-old Kia Krumpet is determined to build her 67 inventions, but she won't have the opportunity to unless she earns a spot at PIPS, the Piedmont Inventor’s Prep School. Kia, who has trouble making friends at school, has dreamed of winning the Piedmont Challenge and attending PIPS ever since she learned that her Grandma Kitty won the very first Piedmont Challenge. After she and four of her classmates are selected...

Nancy and her friends, George and Bess, are returning from a country carnival when they witness the explosion and burning of a beautiful country mansion. Fearing its occupants may be trapped in the blazing building, they rush to the rescue - and unexpectedly fund themselves confronted with a mystery that seems to be insoluble. The first clue, an anonymous diary, includes not only indecipherable handwriting, but puzzling technical drawings and chemical...