Seemingly nothing in this world daunts the young criminal mastermind Artemis Fowl. In the fairy world, however, there is a small thing that has gotten under his skin on more than one occasion: Opal Koboi. In The Last Guardian, the evil pixie is wreaking havoc yet again. This time his arch rival has reanimated dead fairy warriors who were buried in the grounds of Fowl Manor. Their spirits have possessed Artemis's little brothers, making his siblings...

A mathematically gifted sixth-grader is recruited by a group of students to game the system at the biggest theme park in the world--and win the big prize.

On a cross-country vacation with their parents, twins Coke and Pepsi, soon to be thirteen, fend off strange assassins as they try to come to terms with their being part of a top-secret government organization known as The Genius Files.

Sophie Simon, a third-grade genius, wants a graphing calculator so she can continue to study calculus while she rides the bus to school, but her parents are more concerned that she does not have any friends.

"The wackiest road trip in history continues as the McDonald twins travel the Southwest dodging nefarious villains and visiting weird but true American landmarks"--

Max Einstein and a group of international geniuses use their creativity and curiosity to help solve some of the world's toughest problems with science.

When seventh-grader Jake McQuade mistakes the world's first ingestible knowledge pills for jelly beans, he suddenly knows all about physics and geometry and can speak Swahili (though Spanish would be a lot more useful)--but his sort-of girlfriend Grace thinks they can use his new found brilliance to save their middle school from the new principal, who is conspiring to get it shut down.

A new series from the bestselling author of Dear Dumb Diary and Franny K. Stein! Victor Shmud has been many things: Knuckle Doctor, a Hunter of Ghost Bears, a Tattoo Artist, The Guy At The Restaurant That Puts The Sugar In Those Little Envelopes, a Computer Scientist, an Octopus Wrestler, and a Wedding Planner. In fact, he's been nearly everything (definitely not A Guy Who Cleans Up Bedrooms yet). But his newest gig is beautifuller (yes, that's a...

After tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet. In 30 BCE, Cleopatra and her husband, Marc Antony, lost their war against Octavian for control of the Egyptian Empire. However, Cleopatra knew Octavian was really after the mysterious item that was the source of all her...