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

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

Jack finally receives a coded message from his brother Max, possibly detailing his whereabouts. But duty calls, and Jack is whisked away to the sweltering savan

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 from the

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 st