Ok, so lately me and my family have been watching the old 70's show "The Hardy Boys" yea it's old, but I'm loving it. So it got me wondering, "I wonder if there are any good mystery books out there?". I know, I know, The Hardy Boys started out as a book series, but from what I've looked up, they appear to be almost children's books. Does anyone else know? Also, what about the Nancy Drew books? I'm looking for something that will really get me thinking about "whodunit!?". I don't want to read a children's book that's as easy to figure out as a children's puzzle. Anyone have any good recommendations? My dad has a bunch of Sherlock Holmes stories so I'm gonna definitely be tearing through those, but I was just curious about what you guys got to recommend.