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 savannah of Kenya before he can decipher it. Once there, a wise and kind Masai chief alerts Jack to a series of elephant killings where the corpses have been robbed of their tusks. Jack must find the malevolent ring of poachers responsible before more of these endangered species are destroyed.

In The Escape of the Deadly Dinosaur, Jack zooms to the city that never sleeps to try to solve the mystery of the missing Allosaurus toe. Starting at the Natural History Museum, Jack's detection takes him to a competitive grade-schooler determined to win the science fair with his experiment crossing his own dog with the DNA from the bone of a dangerous, carnivorous dinosaur. Soon the gargantuan creature is terrorizing New Yorkers and Jack must stop him before he devours the animals in the Central Park zoo!

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 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 red-haired man takes it out of the country, never to be seen again?

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 Tower of London. Arriving on the scene, he is greeted by a traditional Tower guard- a Yeoman Warder (or Beefeater)- who explains what's missing: The Imperial State Crown, the Sovereign's Orb, and the Sovereign's Scepter with the cross containing the finest-cut diamond in the world, the Star of Africa. Jack identifies Ivan the Incredible and his assistant, Jazz, as the thieves immediately--but puzzling out how they did it is stickier. The famous Tower has the most advanced security in the world, and even using his impressive gadgets (the Encryption notebook, Heli-Spacer, Rock Corer, and Rope Tornado) Jack is flummoxed by how the jewels were spirited out. However, Jack can conjure up more than gadgets--he foils the evil magicians with some powerful mojo of his own, dispels an invisibility enchantment, and narrowly avoids the executioner's block before restoring the jewels to the crown and earning the gratitude of the Queen herself!

For fans of the award-winning SECRET AGENT JACK STALWART comes a must-read new chapter book series! Now Jack teams up with his older brother, Max, to solve new international mysteries, using their special training as secret agents. Temporarily retired from the GPF-Global Protection Force-and on family vacation, Jack Stalwart and his older brother, Max, are motivated to act when a band of thieves takes the Emerald Buddha from the Grand Palace in Bangkok. Without the help of the GPF, they're on their own. They're also up against one of the smartest and wealthiest villains they've ever faced. Can Jack and Max find Thailand's most precious statue before it's too late?

Logan is moving from the farm to the city. He'll miss all the things he's leaving behind, but at least he has Bear. He loves Bear more than anything else in the world—because Bear is his dog. Hannah lives in the city. What she wants, more than anything else in the world, is a dog of her own. At the Rainbow Street Shelter, Logan and Hannah find a talking parrot, an old black Labrador, a three-legged goat, a puppy that looks like a peanut—and a Surprise that just might be the best thing in the world.