I, of course, read all the Hardy Boys that had been published back when I was a kid, but they are fun to re-visit. I wonder about the differences between the original editions and the "modernized" ones. This one has transistor radios, which I'm sure were not around back in the 1928 original. In fact, I read that the original edition is rather different than the newer one.
Stolen stuffed animals, ham radio (on 2 meters?), Chet's new hobby of taxidermy, and industrial sabotage. I first read this back in the 60s, but this edition seems to be different than the one I read. No "Help Hudson", no beating the Lynx with an walkie-talkie antenna!