- Nick and Tesla's solar-powered showdown, a mystery with sun-powered 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
- The wrong Wrights, [story by] Chris Kientz [and] Steve Hockensmith ; [illustration by] Lee Nielsen
- 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 special effects spectacular, a mystery with animatronics, alien makeup, camera gear, and other movie magic you can make yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Nick and Tesla's robot army rampage, a mystery with hoverbots, bristle bots, and other robots you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith ; illustrations by Scott Garrett
- Claws and effect, [written by] Chris Kientz, Steve Hockensmith ; [illustrated by] Lee Nielsen
- Nick and tesla's secret agent gadget battle, Bob Pflugfelder and Steve Hockensmith
- Nick and Tesla's solar-powered showdown, a mystery with sun-powered gadgets 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 robot army rampage, a mystery with hoverbots, bristlebots, and other robots you can build yourself, by "Science Bob" Pflugfelder and Steve Hockensmith
- Nick and Tesla's special effects spectacular, a mystery with animatronics, alien makeup, camera gear, and other movie magic you can make 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, Bob Pflugfelder and Steve Hockensmith
- 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