Secret agent Jack Stalwart

"On the eve of the first manned mission to Mars, Secret Agent Jack Stalwart learns that the mission's chief rocket engineer has disappeared. When he finds out that engineer is his father, Jack vows the kidnapper is going to live to regret it. Can Jack keep his cool to save the day?..."p.[4] of cover.

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.

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.

Someone has been killing precious African elephants for their tusks. Can secret agent Jack Stalwart find the poachers and stop them before they strike again?.

An endangered Giant Panda has been kidnapped from the Wolong Nature Reserve in China. Can secret agent, Jack Stalwart, find the panda and rescue it before the evil Scorpion Gang sells it for profit?.

Can secret agent kid Jack Stalwart save his car-racing hero and the Italian team's chance to win the Monza Grand Prix?.

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.

An eager young scientist has brought to life a dangerous flesh-eating dinosaur by crossing its DNA with that of his pet dog, Freddie. Can Secret Agent Jack Stalwart capture the dinosaur before it destroys New York City?.

The crown jewels have been stolen and Secret agent Jack Stalwart must battle a master magician to save them before they disappear forever.

Special agent Jack Stalwart travels to Italy to protect professional car racer Morgan Parks from an assassin.