Most Popular Books
- Nick and Tesla's High-Voltage Danger Lab: A Mystery with Electromagnets, Burglar Alarms, and Other Gadgets You Can Build Yourself
- Nick and Tesla's Robot Army Rampage: A Mystery with Hoverbots, Bristle Bots, and Other Robots You Can Build Yourself
- Nick and Tesla's Secret Agent Gadget Battle: A Mystery with Spy Cameras, Code Wheels, and Other Gadgets You Can Build Yourself
- Nick and Tesla's Solar-Powered Showdown: A Mystery with Sun-Powered Gadgets You Can Build Yourself
- Nick and Tesla's Super-Cyborg Gadget Glove: A Mystery with a Blinking, Beeping, Voice-Recording Gadget Glove You Can Build Yourself
Series By Bob Pflugfelder
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