Hardy Boys: Undercover Brothers Series
40 primary works • 40 total worksBook 1
Extreme Danger (Hardy Boys: Undercover Brothers, #1) Franklin W. Dixon
4.03 avg. rating · 933 Ratings
Book 2
Running on Fumes (Hardy Boys: Undercover Brothers, #2) Franklin W. Dixon
3.9 avg. rating · 559 Ratings
Book 3
Boardwalk Bust (Hardy Boys: Undercover Brothers, #3) Franklin W. Dixon
3.91 avg. rating · 513 Ratings
Book 4
Book 5
Book 6
Book 7
Operation: Survival (Hardy Boys: Undercover Brothers, #7) Franklin W. Dixon
4.07 avg. rating · 408 Ratings
Book 8
Top Ten Ways to Die (Hardy Boys: Undercover Brothers, #8) Franklin W. Dixon
4.11 avg. rating · 440 Ratings
Book 9
Book 10
Book 11
Hurricane Joe (Hardy Boys: Undercover Brothers, #11) Franklin W. Dixon
3.99 avg. rating · 400 Ratings
Book 12
Trouble in Paradise (Hardy Boys: Undercover Brothers, #12) Franklin W. Dixon
4.02 avg. rating · 323 Ratings
Book 13
The Mummy's Curse (Hardy Boys: Undercover Brothers, #13) Franklin W. Dixon
3.93 avg. rating · 350 Ratings
Book 14
Book 15
Death and Diamonds (Hardy Boys: Undercover Brothers #15) Franklin W. Dixon
4 avg. rating · 319 Ratings
Book 16
Bayport Buccaneers (Hardy Boys: Undercover Brothers, #16) Franklin W. Dixon
3.94 avg. rating · 299 Ratings
Book 17
Murder at the Mall (Hardy Boys: Undercover Brothers, #17) Franklin W. Dixon
3.96 avg. rating · 323 Ratings
Book 18
Book 19
Book 20
Feeding Frenzy (Hardy Boys: Undercover Brothers, #20) Franklin W. Dixon
3.95 avg. rating · 248 Ratings
Book 21
Comic Con Artist (Hardy Boys: Undercover Brothers, #21) Franklin W. Dixon
3.96 avg. rating · 255 Ratings
Book 22
Deprivation House (Hardy Boys: Undercover Brothers, #22) Franklin W. Dixon
4.16 avg. rating · 333 Ratings
Book 23
House Arrest (Hardy Boys: Undercover Brothers, #23) Franklin W. Dixon
4.13 avg. rating · 317 Ratings
Book 24
Murder House (Hardy Boys: Undercover Brothers, #24) Franklin W. Dixon
4.26 avg. rating · 334 Ratings
Book 25
Double Trouble (Hardy Boys: Undercover Brothers, #25; Double Danger Trilogy, #1) Franklin W. Dixon
4.09 avg. rating · 223 Ratings
Book 26
Double Down (Hardy Boys: Undercover Brothers, #26; Double Danger Trilogy, #2) Franklin W. Dixon
4.12 avg. rating · 190 Ratings
Book 27
Double Deception (Hardy Boys: Undercover Brothers, #27; Double Danger Trilogy, #3) Franklin W. Dixon
4.29 avg. rating · 187 Ratings
Book 28
Galaxy X (Hardy Boys: Undercover Brothers, #28; Galaxy X, #1) Franklin W. Dixon
4.15 avg. rating · 176 Ratings
Book 29
X-plosion (Hardy Boys: Undercover Brothers, #29; Galaxy X, #2) Franklin W. Dixon
4.08 avg. rating · 202 Ratings
Book 30
The X-Factor (Hardy Boys: Undercover Brothers, #30; Galaxy X, #3) Franklin W. Dixon
4.2 avg. rating · 158 Ratings
Book 31
Book 32
Book 33
Book 34
The Children of the Lost (The Lost Mystery Trilogy #1) Franklin W. Dixon
4.31 avg. rating · 217 Ratings
Book 35
Lost Brother (Book Two in the Lost Mystery Trilogy) Franklin W. Dixon
4.19 avg. rating · 217 Ratings
Book 36
Forever Lost (Book Three in the Lost Mystery Trilogy) Franklin W. Dixon
4.19 avg. rating · 197 Ratings
Book 37
Movie Menace, Hardy Boys #37 (Hardy Boys, Undercover Brothers) Franklin W. Dixon
4.1 avg. rating · 164 Ratings
Book 38
Book 39
Movie Mayhem: Book Three in the Deathstalker Trilogy (39) (Hardy Boys (All New) Undercover Brothers) Franklin W. Dixon
4.25 avg. rating · 118 Ratings
Book Special Edition
Haunted (Hardy Boys: Undercover Brothers, Special Ghost Stories Edition) Franklin W. Dixon
4.17 avg. rating · 169 Ratings