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.

When a virus infects Arlington, Virginia, home of NERDS headquarters, transforming victims into criminal masterminds, it is up to Flinch to stop its spread by miniaturizing himself and entering the head of the Villain Virus's creator, Heathcliff Hodges.

Sometimes, the best hiding place is right in plain sight. Find out about steganography, the practice of concealing messages right under others' noses. See how it links with cryptology, the science of secret communication, and how the two have been used in some of history's biggest moments. Learn about invisible inks, the Cardano Grille, the use of microdots in WWI, and the butterfly maps of Lord Baden-Powell. And follow steganography into modern...

"When Quest (Q) and his stepsister Angela head to Texas for their parents' concert, they discover traces of the terrorist group Ghost Cell in the Lone Star state"-Provided by publisher.

Geronimo Stilton who lives in New Mouse City, the capital of Mouse Island, goes undercover to find an important missing document Reading level: RL 3 ; Ages: 7-10

Imagine having a job that has been around for thousands of years. People called cryptologists have been making-and breaking-codes almost as long as humans have written things down. Read about the historical code makers and breakers who protected their countries by coding and decoding messages for their governments, and the modern cryptologists who keep emails, texts, and online purchases secure.

Led by Duncan "Gluestick" Dewey, the NERDS team uses brain power and courage rather than gadgets when they face off against super villain Simon, his band of savage squirrels, and Albert, a middle-aged computer genius who lives with his mother.

Dive into the secret history of . . . secrets! Cryptology is the art and science of secret communication, and its purpose is to protect precious information and keep people safe. Learn about its building blocks: ciphers, codes, and keys. People have wanted to hide messages and important information for millennia. Read how history's coolest codes and ciphers have progressed from belts and sticks to rotating disks and supercomputers. Use your cryptology...

Zenji Watanabe, seventeen, is sent from Hawaii to the Philippines to spy on the Japanese during World War II and, after he is captured and tortured, must find a way to survive months of being lost in the jungle behind enemy lines.

Q and Angela attempt to learn the truth about the supposed death of Angela's real mother, who used to be a Secret Service agent, while trying to figure out who they can trust.