The Hardy-guttene series consist of 41 mysteries, espionage, & detective stories books written by Dixon Franklin. Hardy-guttene, Dixon Franklin first wrote The Tower Treasure and most recently published

• Hardy-guttene Series Order

We get the question all the time "What order should I read the Hardy-guttene series?". We would recommend you read the Hardy-guttene series in order by series number which is:
• 1.   The Tower Treasure Book
• 2.   The House On The Cliff Book
• 3.   The Secret Of The Old Mill Book
• 4.   The Missing Chums Book
• 5.   Hunting For Hidden Gold Book
• 11.   While The Clock Ticked Book
• 14.   The Hidden Harbor Mystery Book
• 17.   The Secret Warning Book
• 21.   The Clue Of The Broken Blade Book
• 22.   The Flickering Torch Mystery Book
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23.   The Melted Coins Book
25.   The Secret Panel Book
28.   The Sign Of The Crooked Arrow Book
29.   The Secret Of The Lost Tunnel Book
30.   The Wailing Siren Mystery Book
33.   The Yellow Feather Mystery Book
35.   The Secret Of Pirates' Hill Book
36.   The Clue In The Embers Book
37.   The Ghost At Skeleton Rock Book
38.   The Mystery At Devil's Paw (Hardy Boys, Book 38) Book
39.   The Mystery Of The Chinese Junk Book
40.   The Mystery Of The Desert Giant Book
42.   The Viking Symbol Mystery Book
45.   The Mystery Of The Spiral Bridge Book
47.   Hb #12 Footprints Under The Window-Promo Book
48.   Mystery Of The Whale Tattoo Book
49.   The Great Airport Mystery Book
52.   The Bombay Boomerang Book
56.   The Masked Monkey Book
58.   The Shattered Helmet Book