Stuart Gibbs

On another harrowing mission, survival training comes in handy when Ben Ripley is stranded in the wilderness with his nemesis, Murray Hill.

"Top-secret training continues into summer for aspiring spy Ben Ripley--and so does the danger."-- Provided by publisher.

Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school.

"Follows the spies-in-training on a hunt to find the leader of the evil organization SPYDER and take them down once and for all"-- Provided by publisher.

The CIA forces twelve-year-old Charlotte "Charlie" Thorne, a rebellious genius, to use her code-breaking skills on an epic global chase to locate Einstein's last equation before dangerous agents discover it and unlock the solution to harnessing energy.-- Provided by Publisher.

Thirteen-year-old Ben Ripley is assigned to protect the president from an assassination attempt in his first solo mission, but he may be in over his head.

"Superspy middle schooler Ben Ripley races against time and across state lines - traveling by car, train, boat and plane - to track Murray Hill down before Ben's cyber enemies can find him"-- Provided by publisher.

Charlie Thorne is a genius. Charlie Thorne is fearless. Charlie Thorne may have finally met her match. Charlie Thorne is used to being on the run. Ever since she was recruited by the CIA to track down Einstein's most dangerous equation, Charlie - and former CIA agents Dante Garcia and Milana Moon - has traveled around the world to prevent history's greatest discoveries from falling into the wrong hands. But after beating others to the secrets hidden...

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...

"Someone is trying to hunt FunJungle's Asian greater one-horned rhinoceros, and twelve-year-old Teddy Fitzroy is on the case"-- Provided by publisher.