26 books in series
Hardy Boys: Undercover Brothers
Hardy Boys: Undercover Brothers is a 26-book series with 26 released primary works first released in 2005 with contributions by Franklin W. Dixon.
| #2 |  Running on Fumes Running on Fumes
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| #3 |  Boardwalk Bust
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| #4 | Thrill Ride Thrill Ride
| 4 | 2 reads | ||
| #6 |  Burned
| 5 | 2 reads | ||
| #7 |  Operation: Survival
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| #9 |  Martial Law
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| #11 |  Hurricane Joe
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| #13 |  The Mummy's Curse
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| #14 |  Hazed
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| #15 |  Death and Diamonds
| 4 | 1 read | ||
| #16 |  Bayport Buccaneers
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| #17 |  Murder at the Mall
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| #22 |  Deprivation House
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| #23 |  House Arrest
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| #24 |  Murder House
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| #25 |  Double Danger Trilogy
| 3 | 1 read | ||
| #29 |  X-plosion X-plosion
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| #30 |  The X-Factor The X-Factor
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| #31 |  Killer Mission Killer Mission
| 3.5 | 2 reads | ||
| #32 |  Private Killer Private Killer
| 4 | 1 read | ||
| #33 | Killer Connections Killer Connections
| 4 | 1 read | ||
| #34 |  The Children of the Lost The Children of the Lost
| 0 | 1 read | ||
| #35 | Lost Brother Lost Brother
| 0 | 1 read | ||
| #36 |  Forever Lost Forever Lost
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| #37 |  Movie Menace, Hardy Boys #37
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| #39 |  Movie Mayhem: Book Three in the Deathstalker Trilogy
| 0 | 0 reads |