Gibbs, Stuart

"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 wealth and influence, so she hid it before committing suicide. She left a series of devious clues behind for her children to find it, but they were lost to history--until now. . . . Charlie must fight for her life against ruthless enemies, match wits with Cleopatra, and solve the two-thousand-year-old mystery to prevent the most powerful treasure of the ancient world from falling into the wrong hands"--Provided by publisher.

"Charlie Thorne must search for Charles Darwin's hidden treasure in South America--with plenty of enemies hot on her trail"--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.

While visiting his girlfriend Summer in Malibu, Teddy stumbles upon two mysteries involving a blown up whale explosion and a string of beach sand thefts, but his investigation is sidetracked by a rumor that his girlfriend is dating a celebrity, leading him to question their relationship.

Charlie Thorne, along with former agents Dante Garcia and Milana Moon, race to find an immensely powerful discovery of Isaac Newton's and face challenges and enemies along the way.

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

During a spy school game of Capture the Flag, twelve-year-old Ben Ripley accidentally shoots a live mortar into the principal's office-and immediately gets himself expelled. Not long after going back to the boring real world, Ben gets an offer to join evil crime organization SPYDER. And he accepts.

In this graphic novel version of the book of the same name, thirteen-year-old Ben works to expose the plot of the evil crime organization SPYDER after he's expelled from spy school and recruited to join their ranks.

Tim and his friends flee the hazardous Sea of Terror and head toward the city of Atlantis in pursuit of King Neptuna's stolen trident.

"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 wealth and influence, so she hid it before committing suicide. She left a series of devious clues behind for her children to find it, but they were lost to history--until now. . . . Charlie must fight for her life against ruthless enemies, match wits with Cleopatra, and solve the two-thousand-year-old mystery to prevent the most powerful treasure of the ancient world from falling into the wrong hands"--Provided by publisher.