Nick and Tesla are bright 11-year-old siblings with a knack for science, electronics, and getting into trouble. When their parents mysteriously vanish, they?re sent to live with their Uncle Newt, a brilliant inventor who engineers top-secret gadgets for a classified government agency. It?s not long before Nick and Tesla are embarking on adventures of their own?engineering all kinds of outrageous MacGyverish contraptions to save their skin: 9-volt...

"After foiling a gang of kidnappers and fending off an army of robots, 11-year-old siblings Nick and Tesla Holt could use a little rest! But as their third mystery opens, they discover there's a spy in their midst, searching for secrets in the home of their beloved (and slightly crazy) Uncle Newt. Is it the new laboratory assistant? The exterminator? The housekeepers? Or someone completely unexpected? To expose the mystery agent, Nick and Tesla must...

"Hollywood has come to Half Moon Bay as kid inventors Nick and Tesla find themselves on the set of a big-budget superhero movie. But someone's sabotaging the on-screen debut of their favorite comic book hero, so the brother and sister sleuths must sneak behind the scenes to save the show. Luckily, they have help from an arsenal of homemade special-effects gadgets. This cinematic saga includes instructions for creating camera gear, stunt dummies, make-up...