Nick and Tesla's secret agent gadget battle a mystery with spy cameras, code wheels, and other gadgets you can build yourself

"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) Unc...

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Main Authors: Pflugfelder, Bob, 1967- (Author), Hockensmith, Steve (Author)
Other Authors: Garrett, Scott (Illustrator)
Format: Books Print Book
Language: English
Published: Philadelphia : Quirk Books, [2014]
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