Determined to learn the secret of the old mill, Frank and Joe employ a clever use to gain entrance and become trapped. There they unravel two mysteries, one involving a counterfeiting case and the other, a national security case their father is working on.
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"I initially found this entry in the series confusing because I kept reading the word "counterfeit" as "Confederate," and I couldn't understand why merchants and shopkeepers in Bayport were having such trouble differentiating between US greenbacks and C.S.A. funny money from the 1860s. Eventually, however, I figured out what counterfeiting actually entailed, which greatly increased my enjoyment of this book. (Not to mention making me obsessed with counterfeiting.)" — Adam (4 out of 5 stars)
"I initially found this entry in the series confusing because I kept reading the word "counterfeit" as "Confederate," and I couldn't understand why merchants and shopkeepers in Bayport were having such trouble differentiating between US greenbacks and C.S.A. funny money from the 1860s. Eventually, however, I figured out what counterfeiting actually entailed, which greatly increased my enjoyment of this book. (Not to mention making me obsessed with counterfeiting.)"
" I am still hooked what can I say :-)! "
" I just read this today.. I probably read it when I was a kid too. IDK I read so much then.. I enjoyed reading this fun, clean mystery.. good for kids and now it is almost "historical fiction" too.. "
" I read this over 25 years ago, but I remember that it was a really great book... the whole series was good. I'd like my daughter to read these someday. I have this book and several others in the series... "
" I loved Hardy Boys books as a kid. They were my first books over 80 pages long that I ever read ... well ok my dad read most of the first few to me, but they were the books that got me started. "
" I loved it! The Hardy Boys solve another mystery! "
" Grey is loving these. Perfect for children ages 5 and up. "
" I read the Hardy Boys books (and Nancy Drew) when I was a child. The stories are old fashioned, but that's why I like them so much. "
" one cannot deny the entertainment value of the hardy boys. "
" I wonder if this is the first Hardy Boys' book I read in one day? It seems more familiar than a lot of the others. "
" This book didn't have a great build-up, from the title of the book it was solved. "
" This issue is one of my favorites since in the book I learned not to leave my phone off, silent, or vibrate if I'm near a creepy looking place just to be safe. You never know whats going on so always pay attention to your surroundings to be safe and also to always know where you are. "
" I read a few of these as a kid, but can't remember the exact ones, except this one... "
" These are fun books. Jared never wanted me to stop reading. I like that they teach how Frank and Joe were always problem solving-thinking outside of the box. Great skill! "
" One of the earlier Hardy Boys. Forgot about the "comedic" Oscar Smuff character in the early books. Must have been blocking him out. "
" A Diarrhea for me to finish it . "
" #3 in the series was also one of my favorites. The Hardy Boys series was always a great read. read these years ago. "
" This one was pretty unremarkable except for the interesting scenes at the secret factory/lab building. I really enjoyed those. I also really, really want a false wall in my room. "
" The Hardy Boys get trapped in an old mill and end up solving two mysteries "
" Yet another amusing and entertaining book from the Hardy Boys series, this one involving counterfeiters and "anti-American" saboteurs. It was written during the Cold War, after all. A fun read, read to my 9-year-old son. "
" If there were ten stars I would give it 10 stars. My favorite part in this book was when they heard people talking in the mill. I liked when these people ran up towards the Hardy Boys and the Hardy Boys ran the other way. "
" Not a favorite for sure. It was exiting and happy I really like mystery books. I like the "Boxcar children" more though,they are much more interesting. It was just another book I didn't nessesarely Love. "
" I love this book. They keep on getting better as I read them. This was #3. "
" AMazing if you read Hardy Boys before it is everything you could expect.!! "
" Not quite as good as Nancy Drew, afterall she was my hero, but equally intriguing for an imaginative child. "
" This review is of the original 25 chapter book. "
" Love this book.I would recommend this book. "
" I LOVE THIS BOOK~ "
" The Hardy Boys series is one of my favorites. This was not the best one, but it was good. I would rate most of the series 5 stars "
" This was a great book I read the first one and I was sucked in from there! "
" One of my favorite Hardys, and although the revision is seriously altered, I like both versions of this book; the revised is a favorite, and the original book, with some plot differences, is also on my top ten Hardy list. "
" This is my second Hardy Boy book, that I have read. And I thought the first time around that it was not very mysterious. This particular book, the mystery was certainly identifiable but the who's and why's were much more complicated. I like more complicated. "
" This book was a real page-turner. It was a great book. Well written and suspenseful. "
" Read to help remember my childhood. This was an early series that I read. "
" When I was still schooling, I tried to read all of the Hardy Boys books. I didn't come close to finishing the whole series, and by now I had already forgot most of the content of those that I had read. But I do recall how much I loved reading each and every one of them. "
" i think i'll like all the hardy boys just like nancy drew. fun read, easy, exciting for my 9 yr. old. "
" I was surprised I ended up loving this series and not liking Nancy Drew "
" it was fun and iteresting to read "
" My son and I are reading this at bedtime. "
" My favorite Hardy Boys, hands down. Read it many many times before I even knew how to pronounce counterfeit. "
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