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

In his fourth page-turning adventure, Jack travels to London, where he must thwart a plan to steal the crown jewels while continuing his search for his lost bro

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

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 ord

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 t