Nick and Tesla's secret agent gadget battle : a mystery with spy cameras, code wheels, and other gadgets you can build yourself
by Pflugfelder, Bob, 1967- (Author), Hockensmith, Steve (Author)
Summary
"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. I... Full description
Series: Nick and Tesla
Nick and Tesla's high-voltage danger lab: a mystery with electromagnets, burglar alarms, and other gadgets you can build yourself (Volume 1.)
Nick and Tesla's robot army rampage: a mystery with hoverbots, bristlebots, and other robots you can build yourself (Volume 2.)
Nick and Tesla's secret agent gadget battle: a mystery with spy cameras, code wheels, and other gadgets you can build yourself (Volume 3.)
Nick and Tesla's super-cyborg gadget glove: a mystery with a blinking, beeping, voice-recording gadget glove you can build yourself (Volume 4.)
Nick and Tesla's special effects spectacular: a mystery with animatronics, alien makeup, camera ... gear, and other movie magic you can make yourself! (Volume 5.)
Nick and Tesla's solar-powered showdown: a mystery with sun-powered gadgets you can build yourselff (Volume 6.)