A Mystery with Electromagnets, Burglar Alarms, and Other Gadgets You Can Build Yourself
Ratings1
Average rating4
I would have adored these books as a kid. Love the smart kids, spy/investigative plots, and awesome nerdy science with instructions how to build things yourself. My kid was a bit young for these - better for 10-12 year olds, but that just means we'll get to revisit in a few years.