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- Nick and Tesla's high-voltage danger lab, a mystery with electromagnets, burglar alarms, and other gadgets you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's super-cyborg gadget glove, a mystery with a blinking, beeping, voice-recording gadget glove you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's secret agent gadget battle, a mystery with spy cameras, code wheels, and other gadgets you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's robot army rampage, a mystery with hoverbots, bristlebots, and other robots you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's high-voltage danger lab, a mystery with electromagnets, burglar alarms, and other gadgets you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's super-cyborg gadget glove, a mystery with a blinking, beeping, voice-recording gadget glove you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's secret agent gadget battle, a mystery with spy cameras, code wheels, and other gadgets you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's robot army rampage, a mystery with hoverbots, bristlebots, and other robots you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett