While on a mission aboard the The Emperor of the Seas, Ben Ripley faces off against his arch enemy, Murray Hill, on the high seas and quickly finds himself in hot water as things take a dangerous turn.

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.

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

With SPYDER apparently defeated, thirteen-year-old Benjamin Ripley is hoping for some peace at spy school, but when the CIA conference room next to where Ben and Alexander are trying to explain everything to Ben's parents (no easy task) is blown up, suspicion falls on fellow trainee (and secret crush) Erica.

With no knightly experience but plenty of pluck and an impressive vocabulary, a twelve-year-old peasant, hoping to improve his station in life, volunteers to help a cowardly prince and his not very powerful wizard rescue a princess from an evil, foul-smelling monster.

"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"--