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One of Great Britain's most prized possessions, the Crown Jewels, have vanished from the Tower of London. Can Secret Agent Jack Stalwart triumph in his battle against a master magician to save the jewels before they go missing for ever

(Paperback)

The Mona Lisa, the most famous painting in the world, has been stolen from the Louvre museum in Paris. Can Secret Agent Jack Stalwart find it before an evil thief takes it out of the country, never to be seen again

(Paperback)

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

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On the eve of the first manned mission to Mars, a madman has kidnapped its chief engineer. Can Secret Agent Jack Stalwart save the day and keep his cool when he finds out who the missing engineer is

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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

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A group of scientists have gone missing in the Arctic - could this be linked to their research into global warming Jack must face the harsh weather and a very hungry polar bear to find out . . .

(Paperback)

Jack Stalwart may be a top rock climber, but no amount of practise can prepare him for the most gruelling climb of all- Mount Everest. When a skull believed to be that of a yeti is stolen by an evil collector of curiosities, Jack must brave one of the most inhospitable places on earth to retrieve it...

(Paperback)

An ancient and terrible curse of the pahroahs is set to wreak havoc in Egypt. Can Secret Agent Jack Stalwart save the day and finally solve the mystery of his missing brother, Max

(Paperback)

Secret Agent Jack Stalwart is about to decipher a code from his missing brother, Max, when he's called on a mission to Kenya. Someone has been killing precious African elephants for their tusks. Can Jack find the poachers and stop them before they strike again

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An endangered Giant Panda has been kidnapped from the Wolong Nature Reserve in China. Time is running out... Can Secret Agent Jack Stalwart find the panda and rescue it before the evil Scorpion Gang sells it for profit

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An ancient stone with the location of Aztec treasure has been stolen from an ailing man's bedside table. Can Secret Agent Jack Stalwart track the thieves and stop them before they plunder Montezuma's gold

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Off the coast of Australia, a diver has vanished and along with him an unknown treasure from the wreck of the HMS Pandora. Can Secret Agent Jack Stalwart find the diver and defeat a deadly band of pirates before they sail away with the treasure for ever

(Paperback)

The keeper of the sacred necklace of Angkor Wat has been kidnapped in the jungles of Cambodia. Can Secret Agent Jack Stalwart rescue her and prevent a madman from using the power of the necklace for his own wicked plans

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Sacred Japanese treasures are being stolen, and Jack must investigate. Can he defeat the shady geisha Madame Minori and her band of ninja thieves

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Armed with a backpack loaded with ingenious gadgets (and his own common sense), Jack travels thorugh the world, hoping each mission will provide clues to his missing brothers whereabouts. In the meantime, Jack finds himself involved in a treasure hunt.