"Meet Jack and Max Stalwart, Code Names: Courage and Wisdom. Jack and Max are ordinary kids who become secret agents by night, thwarting evil and saving priceless treasures as they solve mysteries around the world. Destination: Brazil. Secret agents Jack and Max Stalwart are sent to the Amazon jungle to investigate the disappearance of an important Global Protection Force scientist. Soon, they discover that the scientist's disappearance is no accident....

The third jet-setting installment in the thrilling award-winning chapter book series Secret Agents Jack and Max Stalwart. Now Jack teams up with his older brother Max to solve an intriguing Irish mystery, using their special training as secret agents. Ireland's greatest national treasure, the sacred Book of Kells, vanishes from a library in Dublin. Clues point to the Mastermind being involved. Will Jack and Max be able to find the Book and uncover...

"The Global Protection Force has summoned Secret Agent Jack Stalwart to Mexico to hunt down a stolen map leading to hidden Aztec gold. Suddenly, he finds himself trapped in the hands of one of the most treacherous hunters in the world. Can Jack stop Callous Carl and his band of thieves before they plunder again?"--Page 4 of cover.

A team of GPF scientists has vanished in the Arctic while doing research on global warming. While rescuing them from the jaws of a hungry polar bear, nine-year-old secret agent jack Stalwart learns of the malicious Black Arctic Project - a group of mysterious villains are speeding up global warming by blowing up glaciers. Can Jack stop them before the entire planet is doomed?

When a plane goes missing over Mount Everest, Jack and his fellow agents must brave the highest mountain on Earth to recover its cargo--the first true yeti skull ever recovered.

Secret agent Jack Stalwart searches for a diver missing from the Great Barrier Reef and a treasure that has vanished from the wreck of the HMS Pandora while trying to defeat a deadly band of pirates.

Under the cover of darkness, a band of ninja thieves has stolen some of Japan's most priceless treasures, including an ancient samurai sword. Can Secret Agent Jack Stalwart take on the gang before the treasures are lost forever?