I remember that when I was 8 to 10 years old the Hardy Boys seemed pretty cool. Hell, what's not to like about boys with motorcycles and motor boats? Clearly, I didn't have well developed critical skills.
A lot happens in this book that makes very little sense in light of things that happened only a few pages previously. Obviously, the books aren't written for people looking for logical sense, just lots of action, danger, motorcycles and fun. The Hardys have all that, but I think I've matured in the last half century and need a bit more these days.