"There is a prophecy. It speaks of a girl who can fly and a boy who knows everything. The prophecy says that they have the power to bring about great change. The boy is Conrad Harrington III. The girl is Piper McCloud. They need their talents now, more than ever, if they are to save themselves--and the world."--

Fifteen-year-old genius Cadel Piggot Greenaus sets aside his new, crime-free life when his best friend Sonja is attacked, and he crosses oceans and continents trying to track down his nemesis Prosper English, breaking whatever rules he must.

Max and her CMI friends attempt to use their smarts to find solutions to a water crisis, while a greedy corporation with an eye on capturing Max seems to know their every move.

"Teenage genius Artemis Fowl and his arch rival Opal battle to the last in this eighth and final book in series"--

A brilliant, impatient fifth-grader with cerebral palsy, considered by many to be mentally retarded, discovers a technological device that will allow her to speak for the first time.