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Super-smart kid inventors Nick and Tesla Holt have outsmarted crooks, spies, and kidnappers, but now it’s time to crack their biggest mystery yet: where the heck are their parents? With the help of their eccentric Uncle Newt, the twins trace the clues to their missing Mom and Dad, scientists working on solar-power research for a clandestine government project. They’ll need all their wits, along with an assortment of homemade gadgets, to outsmart the criminal mastermind who’s trying to turn solar power into a secret weapon. Featuring instructions for building and using five awesome solar-powered contraptions—a hot dog cooker, alarm bell, listening device, model car, and nighttime LED signal cannon—this sixth installment is sure to please budding scientists and sleuthers alike.

What do a pair of kid inventors with a knack for science and electronics do when Hollywood comes to town? Why save the day, of course! 
 
In Nick and Tesla’s Special Effects Spectacular, 11-year-old siblings Nick and Tesla Holt find themselves on the set of a big-budget superhero movie. But someone’s sabotaging the onscreen debut of their favorite comic book hero, so the brother and sister sleuths must crack the case with the help of a fresh assortment of homemade special-effects gadgets. This cinematic saga features instructions for all-new movie magic projects that kids can build themselves, such as camera gear, stunt dummies, make-up magic, and more. Science and electronics have never been so much fun! 

“How do you connect students interested in STEM (science, technology, engineering, mathematics) with fiction reading? Look for science adventures. Get started with the Nick and Tesla series. Each book contains an engaging adventure revolving around a ‘build-it-yourself’ science project.”—Teacher Librarian

“Real project blueprints are included along with this tale of 11-year-old siblings who create outrageous contraptions and top-secret gadgets.”—Los Angeles Times

Bright siblings—and amateur inventors—Nick and Tesla Holt are back in this fourth installment of their whiz-bang middle-grade series. This time, the twins are out to save science itself, as they race against the clock to figure out why a robotic assortment of history’s greatest scientists and inventors keeps going haywire. Is this sabotage, robo-geddon…or something more sinister? To unravel the mystery, they’ll have to keep adding all-new gadgets to their cyborg glove as they stay one step ahead of a hidden adversary.

Together with zany scientist Uncle Newt and their friends Silas and DeMarco, Nick and Tesla won’t give up until an answer is found…but can they do it before time runs out? In this book, readers will learn how to construct a super-cyborg gadget glove that has four incredible functions: LED signal light, ultra-loud emergency alarm, handy sound recorder, and UV secret message revealer. Science and electronics have never been so much fun!

“SCIENCE BOB” PFLUGFELDER is an elementary school teacher based in Newton, Massachusetts. He has made many television appearances on Jimmy Kimmel Live, The Dr. Oz Show, and Live With Kelly & Michael, among other media outlets. These are his first books. STEVE HOCKENSMITH is a New York Times best-selling author and an Edgar Award nominee.

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 engineer all kinds of outrageous contraptions, from code wheels and fingerprint powder to spy cameras and burglar detectors. Best of all, instructions are included throughout the story, so you can build the projects, too!

“SCIENCE BOB” PFLUGFELDER is an elementary school teacher based in Newton, Massachusetts. He has made many television appearances on Jimmy Kimmel Live, The Dr. Oz Show, Live with Kelly & Michael, and other media outlets. These are his first books.

STEVE HOCKENSMITH is the author of a New York Times best seller and an Edgar Award nominee. He lives in Alameda, California.