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?

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?

Jack's car-racing hero is in danger. Someone has tried to kill him once and is about to try again. Can the Secret Agent save his idol and the Italian team's chance to win the Monza Grand Prix?

On the eve of the first manned space mission to Mars, Secret Agent Jack Stalwart learns that chief rocket engineer has disappeared, then finds out the engineer is his father. He then vows to do what it takes to make the alleged kidnapper sorry for his act.

"A plane carrying a team of scientists has gone missing over Mount Everest. They were thought to be carrying the first true Yeti skull ever recovered -- proof that the Abominable Snowman really existed. Can Jack and his fellow agents use their climbing skills to brave the highest mountain on earth and recover the priceless skull?"--P. [4] of cover.

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

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.