The Hunt for the Yeti Skull (Book 13) Jack has become the most decorated secret agent for the Global Protection Force, but during the day he’s still just an ordinary kid who has to put up with annoyin
The Mission to Find Max (Book 14) Jack joined the Global Protection Force for two reasons: to thwart evil around the world and to rescue his brother, Max, who went missing while working as a GPF agent
Jack is transported to Russia to find the whereabouts of a key aerospace engineer, who turns out to be his father, before the launch of the first manned mission to Mars.
Jack, a secret agent on the search for his missing brother Max, must hunt down a stolen map that leads to hidden Aztec gold before ruthless treasure hunter Callous Carl can find it.
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 disappear
When the Mona Lisa is stolen, Jack Stalwart, a secret agent with the Global Protection Force, must find it before it leaves the country and is never seen again.
Nine-year-old secret agent Jack must rescue an archeologist working at Angkor Wat and prevent her kidnapper from using the power of the antiquities she was guarding for evil.
Nine-year-old Jack, a secret agent with the Global Protection Force, must find a diver and treasure that went missing from the wreck of the HMS Pandora near the Great Barrier Reef, a mission complicat
Nine-year-old secret agent Jack is called to Kenya to help Chief Abasi find out who is killing elephants for their ivory tusks and to stop the poachers before any more of the endangered animals are harmed.
Nine-year-old secret agent Jack is called to China find a giant panda kidnapped from the Wolong Nature Reserve before the evil Scorpion Gang attempts to sell it on the black market.
Nine-year-old secret agent Jack, called to the Arctic to help find a team of missing animal scientists, tries to stop a rogue organization, Black Arctic, from carrying out their plan to blow up the ic
When an eager young scientist brings a dangerous flesh-eating dinosaur to life, Jack Stalwart, a secret agent with the Global Protection Force, must capture the dinosaur before it destroys New York Ci
In the Caper of the Crown Jewels, Jack is summoned to solve a matter of grave national importance: the theft of the Crown Jewels of the British empire form the Tower of London. Arriving on the scene,
In the next exciting installment of the series, Jack travels to Japan, where under the cover of darkness, a band of ninja thieves has stolen some of the country's most priceless treasures, including a
