Wissen, was kommt.
Kid inventors Nick and Tesla Holt have outsmarted crooks, spies, and kidnappers. Now they have to...
After foiling a gang of kidnappers and fending off an army of robots, 11-year-old siblings Nick a...
Einstein is running amok! Darwin is losing his head! The science museum in Half Moon Bay is in bi...
Nick and Tesla return in an all-new, robot-filled adventure!When a rash of robberies hits the tow...
Eleven-year-old twins Nick and Tesla are living with their eccentric inventor uncle when they dec...
Originally published: Philadelphia: Quirk Books, 2013.
In order to figure out why robotic versions of history's greatest scientists and inventors keep g...
'A mystery with gadgets you can build yourself.'