Mr. and Mrs. Green, a loving alligator couple, practice magic tricks, bake cookies, and dream up new inventions.

"Twelve-year-old Hope lives in a post World War III town called White Rock where everyone must participate in Inventions Day, though Hope's inventions always fail. Her unique skill set comes in hand when a group of bandits invades the town"--

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

Frannie tries to prevent chaos when her new lab assistant, Igor, a dog of many breeds, accidentally lets loose a giant, fifty-foot, arrow-shooting cupid.

The fate of the multiverse rests in Marguerite's hands in the final installment of the Firebird trilogy by New York Times bestselling author Claudia Gray. Ever since she used the Firebird, her parent's invention, to cross through alternate dimensions, Marguerite has been at the center of a cross-dimensional feud. Now she has learned that the evil Triad Corporation plans to destroy hundreds of universes, using their ultimate weapon: another dimension's...

Fourteen-year-old Nick has learned that the strange antiques in his attic bedroom were left there by the eccentric inventor Nikola Tesla. They are pieces of Tesla's Far Range Energy Emitter, capable of transmitting "free energy" to the globe. Some components of the contraption are still missing, but the objects themselves seem to be leading Nick and his friends to their current owners. However, members of the Accelerati, a menacing secret society...

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 Goldie Blox lets down her BFF Ruby Rails, she is determined to make it up by throwing her friend the best birthday bash ever"--

Marguerite Caine's physicist parents are known for their groundbreaking achievements. Their most astonishing invention, called the Firebird, allows users to jump into multiple universes-and promises to revolutionize science forever. But then Marguerite's father is murdered, and the killer-her parent's handsome, enigmatic assistant Paul- escapes into another dimension before the law can touch him. Marguerite refuses to let the man who destroyed her...

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.