Hardy Boys

Frank and Joe Hardy, sons of the famous detective Fenton Hardy, are on the case in this book series.
47 The Mystery of the Whale Tattoo (1968-YN): Hardy Boys Book Blue Back image 0
Vendor: Grosset & Dunlap, Inc.

47 The Mystery of the Whale Tattoo (1968-YN): Hardy Boys Book Blue Back

$13.00
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48 The Arctic Patrol Mystery (1969): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

48 The Arctic Patrol Mystery (1969): Vintage Hardy Boys Book

$14.50
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46 The Secret Agent on Flight 101 (1967): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

46 The Secret Agent on Flight 101 (1967): Hardy Boys Book

$6.50
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30 The Wailing Siren Mystery (1968-YN): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

30 The Wailing Siren Mystery (1968-YN): Vintage Hardy Boys Book

$14.00
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25 The Secret Panel (1946/1969): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

25 The Secret Panel (1946/1969): Vintage Hardy Boys Book Blue-Back

$14.00
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24 The Short Wave Mystery (Blue Bar) Vintage Hardy Boys Book image 0
Vendor: Grosset & Dunlap, Inc.

24 The Short Wave Mystery (Blue Bar) Vintage Hardy Boys Book

$11.50
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23 The Melted Coins (1970): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

23 The Melted Coins (1970): Vintage Hardy Boys Book Blue-Back

$13.00
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22 The Flickering Torch Mystery (1971): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

22 The Flickering Torch Mystery (1971): Vintage Hardy Boys Book Blue-Back

$13.00
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48 The Arctic Patrol Mystery (1969-Yellow Number): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

48 The Arctic Patrol Mystery (1969-Yellow Number): Hardy Boys Book Blue-Back

$13.00
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28 The Sign of the Crooked Arrow (1970 Red Number): Hardy Boys Book Blue image 0
Vendor: Grosset & Dunlap, Inc.

28 The Sign of the Crooked Arrow (1970 Red Number): Hardy Boys Book Blue

$14.00
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29 Secret of the Lost Tunnel (1950/1968 RN): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

29 Secret of the Lost Tunnel (1950/1968 RN): Hardy Boys Book Blue-Back

$14.50
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03 The Secret of the Old Mill (1962): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

03 The Secret of the Old Mill (1962): Hardy Boys Book

$5.00
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56 Jungle Pyramid (1977) Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

56 Jungle Pyramid (1977) Vintage Hardy Boys Book Blue-Back

$11.50
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55 The Witchmaster's Key (1976): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

55 The Witchmaster's Key (1976): Vintage Hardy Boys Book

$14.50
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54 The Mysterious Caravan (1975): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

54 The Mysterious Caravan (1975): Vintage Hardy Boys Book

$12.50
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51 Masked Monkey (1972) Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

51 Masked Monkey (1972) Vintage Hardy Boys Book

$12.50
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49 The Bombay Boomerang (1970): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

49 The Bombay Boomerang (1970): Vintage Hardy Boys Book

$15.50
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50 Danger on Vampire Trail (1971): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

50 Danger on Vampire Trail (1971): Vintage Hardy Boys Book

$13.00
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47 The Mystery of the Whale Tattoo (1968): Vintage Hardy Boys Book Blue-Back image 0Two-page endpapers with black and white Hardy Boys adventure scenes from the 1968 edition of The Mystery of the Whale Tattoo
Vendor: Grosset & Dunlap, Inc.

47 The Mystery of the Whale Tattoo (1968): Hardy Boys Book

$16.50
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45 Mystery Spiral Bridge (1966/71): Vintage Hardy Boys Book image 0
Vendor: Grosset & Dunlap, Inc.

45 Mystery Spiral Bridge (1966/71): Vintage Hardy Boys Book

$8.00
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44 The Haunted Fort (Blue Bar): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

44 The Haunted Fort (Blue Bar): Vintage Hardy Boys Book

$12.50
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44 The Haunted Fort (1965): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

44 The Haunted Fort (1965): Vintage Hardy Boys Book

$14.00
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43 Mystery of the Aztec Warrior (1964): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

43 Mystery of the Aztec Warrior (1964): Vintage Hardy Boys Book

$10.00
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43 The Mystery of the Aztec Warrior (Blue Bar): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

43 The Mystery of the Aztec Warrior (Blue Bar): Hardy Boys Book

$13.00
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42 The Viking Symbol Mystery (Blue Bar): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

42 The Viking Symbol Mystery (Blue Bar): Vintage Hardy Boys Book

$14.00
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42 The Viking Symbol Mystery (1963): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

42 The Viking Symbol Mystery (1963):Vintage Hardy Boys Book

$15.50
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41 The Clue of the Screeching Owl (Blue Bar): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

41 The Clue of the Screeching Owl (Blue Bar): Hardy Boys Book

$13.00
Sale price: $13.00 Regular price:
40 The Mystery of the Desert Giant (Blue bar): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

40 The Mystery of the Desert Giant (Blue bar): Hardy Boys Book

$14.00
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41 The Clue of the Screeching Owl (1962): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

41 The Clue of the Screeching Owl (1962): Vintage Hardy Boys Book

$11.50
Sale price: $11.50 Regular price:
40 Mystery of the Desert Giant (1961) Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

40 Mystery of the Desert Giant (1961) Hardy Boys Book

$14.50
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39 The Mystery of the Chinese Junk (Blue Bar): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

39 The Mystery of the Chinese Junk (Blue Bar): Hardy Boys Book

$14.50
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39 The Mystery of the Chinese Junk (1960-WE): Hardy Boys Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

39 The Mystery of the Chinese Junk (1960-WE): Hardy Boys Book

$14.00
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38 The Mystery at Devil's Paw (1959/1973 RN): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

38 The Mystery at Devil's Paw (1959/1973 RN): Hardy Boys Book

$14.50
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37 The Ghost at Skeleton Rock (1966): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

37 The Ghost at Skeleton Rock (1966): Vintage Hardy Boys Book

$13.00
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36 The Secret of Pirates Hill (1956 Brown) Hardy Boys Book image 0
Vendor: Grosset & Dunlap, Inc.

36 The Secret of Pirates Hill (1956 Brown) Hardy Boys Book

$13.00
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36 The Secret of Pirates' Hill (1956/1972-YN): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

36 The Secret of Pirates' Hill (1956/197-YN): Hardy Boys Book

$10.50
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35 The Clue in the Embers (1972 YN): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

35 The Clue in the Embers (1972 YN): Hardy Boys Book

$10.50
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35 The Clue in the Embers (1955-BE): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

35 The Clue in the Embers (1955-BE): Vintage Hardy Boys Book

$15.50
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32 Crisscross Shadow (1953/1968) Vintage Hardy Boys Book image 0
Vendor: Grosset & Dunlap, Inc.

32 Crisscross Shadow (1953/1968) Vintage Hardy Boys Book

$14.50
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Vintage Hardy Boys book The Secret of Wildcat Swamp by Franklin W. Dixon with dramatic swamp cover artOpen vintage book showing the copyright and detailed contents page of the Hardy Boys mystery number 31, printed by Grosset & Dunlap
Vendor: Grosset & Dunlap, Inc.

31 Secret of Wildcat Swamp (1952/1969): Vintage Hardy Boys Book

$14.00
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29 The Secret of the Lost Tunnel (1950/1968): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

29 The Secret of the Lost Tunnel (1950/1968): Hardy Boys Book Blue-Back

$15.50
Sale price: $15.50 Regular price:
28 The Sign of the Crooked Arrow (1970): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

28 The Sign of the Crooked Arrow (1970): Vintage Hardy Boys Book Blue-Back

$15.50
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27 The Secret of Skull Mountain (1966): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

27 The Secret of Skull Mountain (1966): Vintage Hardy Boys Book Blue-Back

$14.50
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26 The Phantom Freighter (1947/1970): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

26 The Phantom Freighter (1947/1970): Vintage Hardy Boys Book Blue-Back

$15.50
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23 The Melted Coins (1944): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

23 The Melted Coins (1944): Vintage Hardy Boys Book Blue-Back

$14.00
Sale price: $14.00 Regular price:
21 The Clue of the Broken Blade (1970): Vintage Hardy Boys Book Blue-Back image 0Open hardcover Hardy Boys book showing black-and-white illustrated endpapers with mystery scenes from The Clue of the Broken Blade
Vendor: Grosset & Dunlap, Inc.

21 The Clue of the Broken Blade (1970): Hardy Boys Book

$16.50
Sale price: $16.50 Regular price:
20 Mystery of the Flying Express (1970-RN): Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

20 Mystery of the Flying Express (1970-RN): Hardy Boys Book Blue-Back

$15.50
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17 Secret Warning (1966-YN): Vintage Hardy Boys Book image 0
Vendor: Grosset & Dunlap, Inc.

17 Secret Warning (1966-YN): Vintage Hardy Boys Book

$14.00
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19 The Disappearing Floor (Blue Bar): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

19 The Disappearing Floor (Blue Bar): Vintage Hardy Boys Book Blue-Back

$12.50
Sale price: $12.50 Regular price:
18 The Twisted Claw (1969): Vintage Hardy Boys Book Blue-Back image 0
Vendor: Grosset & Dunlap, Inc.

18 The Twisted Claw (1969): Vintage Hardy Boys Book Blue-Back

$15.50
Sale price: $15.50 Regular price: