Clues Brothers (by Unknown)
1. The Gross Ghost Mystery (1997)
2. The Karate Clue (1997)
3. First Day Worst Day (1997)
4. Jump Shot Detectives (1998)
5. Dinosaur Disaster (1998)
6. Who Took the Book (1998)
7. The Abracadabra Case (1998)
8. The Doggone Detectives (1998)
9. The Pumped-Up Pizza Problem (1998)
10. The Walking Snowman (1998)
11. The Monster in the Lake (1999)
12. King for a Day (1999)
13. Pirates Ahoy! (1999)
14. All Eyes on First Prize (1999)
15. Slip, Slide, and Slap Shot (1999)
16. Fish-Faced Mask of Mystery (2000)
17. The Bike Race Ruckus (2000)

Hardy Boys and Tom Swift Ultra Thriller (by Unknown)
Time Bomb (1992)
The Alien Factor (1993)

Hardy Boys Casefiles
1. Dead On Target (1987) (by Unknown)
2. Evil, Inc. (1987) (by Unknown)
3. Cult Of Crime (1987) (by Unknown)
4. The Lazarus Plot (1987) (by Unknown)
5. Edge Of Destruction (1987) (by Unknown)
6. The Crowning Terror (1987) (by Unknown)
7. Deathgame (1987) (by Unknown)
8. See No Evil (1987) (by Unknown)
9. The Genius Thieves (1987) (by Unknown)
10. Hostages Of Hate (1987) (by Unknown)
11. Brother Against Brother (1988) (by Unknown)
12. Perfect Getaway (1988) (by Unknown)
13. The Borgia Dagger (1988) (by Unknown)
14. Too Many Traitors (1988) (by Unknown)
15. Blood Relations (1988) (by Unknown)
16. Line Of Fire (1988) (by Unknown)
17. The Number File (1988) (by Unknown)
18. A Killing In The Market (1988) (by Unknown)
19. Nightmare In Angel City (1988) (by Unknown)
20. Witness To Murder (1988) (by Unknown)
21. Street Spies (1988) (by Unknown)
22. Double Exposure (1988) (by Unknown)
23. Disaster For Hire (1988) (by Unknown)
24. Scene Of The Crime (1988) (by Unknown)
25. The Borderline Case (1989) (by Unknown)
26. Trouble In The Pipeline (1989) (by Unknown)
27. Nowhere To Run (1989) (by Unknown)
28. Countdown To Terror (1989) (by Unknown)
29. Thick As Thieves (1989) (by Unknown)
30. The Deadliest Dare (1989) (by Unknown)
31. Without A Trace (1989) (by Unknown)
32. Blood Money (1989) (by Unknown)
33. Collision Course (1989) (by Unknown)
34. Final Cut (1989) (by Unknown)
35. The Dead Season (1990) (by Unknown)
36. Running On Empty (1990) (by Unknown)
37. Danger Zone (1990) (by Unknown)
38. Diplomatic Deceit (1990) (by Unknown)
39. Flesh and Blood (1990) (by Unknown)
40. Fright Wave (1990) (by Unknown)
41. Highway Robbery (1990) (by Unknown)
42. The Last Laugh (1990) (by Unknown)
43. Strategic Moves (1990) (by Unknown)
44. Castle Fear (1990) (by Unknown)
45. In Self-Defense (1990) (by Unknown)
46. Foul Play (1990) (by Unknown)
47. Flight Into Danger (1991) (by Unknown)
48. Rock 'N' Revenge (1991) (by Unknown)
49. Dirty Deeds (1991) (by Unknown)
50. Power Play (1991) (by Unknown)
51. Choke Hold (1991) (by Unknown)
52. Uncivil War (1991) (by Unknown)
53. Web Of Horror (1991) (by Unknown)
54. Deep Trouble (1991) (by Unknown)
55. Beyond The Law (1991) (by Unknown)
56. Height Of Danger (1991) (by Unknown)
57. Terror On Track (1991) (by David Robbins)
58. Spiked! (1991) (by Unknown)
59. Open Season (1992) (by Unknown)
60. Deadfall (1992) (by Unknown)
61. Grave Danger (1992) (by Unknown)
62. Final Gambit (1992) (by Unknown)
63. Cold Sweat (1992) (by Unknown)
64. Endangered Species (1992) (by Unknown)
65. No Mercy (1992) (by Unknown)
66. The Phoenix Equation (1992) (by Unknown)
67. Lethal Cargo (1992) (by Unknown)
68. Rough Riding (1992) (by Unknown)
69. Mayhem In Motion (1992) (by Unknown)
70. Rigged For Revenge (1992) (by Unknown)
71. Real Horror (1993) (by Unknown)
72. Screamers (1993) (by Unknown)
73. Bad Rap (1993) (by Unknown)
75. No Way Out (1993) (by Unknown)
76. Tagged For Terror (1993) (by Unknown)
77. Survival Run (1993) (by Unknown)
78. The Pacific Conspiracy (1993) (by Unknown)
79. Danger Unlimited (1993) (by Unknown)
80. Dead Of Night (1993) (by Unknown)
81. Sheer Terror (1993) (by Unknown)
82. Poisoned Paradise (1993) (by Unknown)
83. Toxic Revenge (1993) (by Unknown)
84. False Alarm (1994) (by Unknown)
85. Winner Take All (1994) (by Unknown)
86. Virtual Villainy (1994) (by Unknown)
87. Dead Man In Deadwood (1994) (by Unknown)
88. Inferno Of Fear (1994) (by Unknown)
89. Darkness Falls (1994) (by Unknown)
90. Deadly Engagement (1994) (by Unknown)
91. Hot Wheels (1994) (by Unknown)
92. Sabotage At Sea (1994) (by Unknown)
93. Mission, Mayhem (1994) (by Unknown)
94. A Taste For Terror (1994) (by Unknown)
95. Illegal Procedure (1994) (by Unknown)
96. Against All Odds (1994) (by Unknown)
97. Pure Evil (1995) (by Unknown)
98. Murder By Magic (1995) (by Unknown)
99. Frame-Up (1995) (by Unknown)
100. True Thriller (1995) (by Unknown)
101. Peak Of Danger (1995) (by Unknown)
102. Wrong Side Of The Law (1995) (by Unknown)
103. Campaign Of Crime (1995) (by Unknown)
104. Wild Wheels (1995) (by Unknown)
105. Law Of The Jungle (1995) (by Unknown)
106. Shock Jock (1995) (by Unknown)
107. Fast Break (1996) (by Unknown)
108. Blown Away (1996) (by Unknown)
109. Moment Of Truth (1996) (by Unknown)
110. Bad Chemistry (1996) (by Unknown)
111. Competitive Edge (1996) (by Unknown)
112. Cliff-Hanger (1996) (by Unknown)
113. Sky High (1996) (by Unknown)
114. Clean Sweep (1996) (by Unknown)
115. Cave Trap (1996) (by Unknown)
116. Acting Up (1996) (by Unknown)
117. Blood Sport (1996) (by Unknown)
118. The Last Leap (1996) (by Unknown)
119. The Emperor's Shield (1997) (by Unknown)
120. Survival of the Fittest (1997) (by Unknown)
121. Absolute Zero (1997) (by Unknown)
122. River Rats (1997) (by Unknown)
123. High Wire Act (1997) (by Unknown)
124. The Viking's Revenge (1997) (by Unknown)
125. Stress Point (1997) (by Unknown)
126. Fire In The Sky (1997) (by Unknown)
127. Dead In The Water (1997) (by Unknown)
130. Sidetracked to Danger (1997) (by Unknown)
131. Crusade of the Flaming Sword (1997) (by Unknown)
155. The Hunt For Four Brothers (1999) (by Unknown)
166. Past and Present Danger (2001) (by Unknown)

Hardy Boys
1. The Tower Treasure (1927) (by Leslie McFarlane)
2. The House on the Cliff (1927) (by Leslie McFarlane)
3. The Secret of the Old Mill (1927) (by Leslie McFarlane)
4. The Missing Chums (1928) (by Leslie McFarlane)
5. Hunting for Hidden Gold (1928) (by Leslie McFarlane)
6. The Shore Road Mystery (1928) (by Leslie McFarlane)
7. The Secret of the Caves (1929) (by Leslie McFarlane)
8. The Mystery of Cabin Island (1929) (by Leslie McFarlane)
9. Great Airport Mystery (1930) (by Leslie McFarlane)
10. What Happened at Midnight (1931) (by Leslie McFarlane)
11. While the Clock Ticked (1932) (by Leslie McFarlane)
12. Footprints Under the Window (1933) (by Leslie McFarlane)
13. The Mark On the Door (1934) (by Leslie McFarlane)
14. The Hidden Harbor Mystery (1935) (by Leslie McFarlane)
15. The Sinister Signpost (1936) (by Leslie McFarlane)
16. Figure in Hiding (1937) (by Leslie McFarlane)
17. The Secret Warning (1938) (by John Button)
18. The Twisted Claw (1939) (by John Button)
19. Disappearing Floor (1940) (by John Button)
The Mystery of the Missing Friends (1982) (by Unknown)
19. Passport to Danger (1994) (by Unknown)
20. Mystery of the Flying Express (1941) (by John Button)
21. The Clue of the Broken Blade (1942) (by John Button)
22. The Flickering Torch Mystery (1943) (by Leslie McFarlane)
23. The Melted Coins (1944) (by Leslie McFarlane)
24. Short-Wave Mystery (1945) (by Leslie McFarlane)
25. The Secret Panel (1946) (by Harriet Stratemeyer Adams)
26. The Phantom Freighter (1947) (by Amy McFarlane)
27. The Secret of Skull Mountain (1948) (by George Waller)
28. The Sign of the Crooked Arrow (1949) (by Andrew E Svenson)
29. The Secret of the Lost Tunnel (1950) (by Andrew E Svenson)
30. The Wailing Siren Mystery (1951) (by Andrew E Svenson)
31. The Secret of Wildcat Swamp (1952) (by William Halstead)
32. The Crisscross Shadow (1953) (by Richard Cohen)
33. The Yellow Feather Mystery (1953) (by William Dougherty)
34. The Hooded Hawk Mystery (1954) (by Charles S Strong)
35. The Clue in the Embers (1955) (by John Almquist)
36. The Secret of Pirates' Hill (1956) (by John Almquist)
37. The Ghost at Skeleton Rock (1957) (by Jim Lawrence)
38. Mystery at Devil's Paw (1959) (by Jim Lawrence)
39. Mystery of the Chinese Junk (1959) (by Jim Lawrence)
40. Mystery of the Desert Giant (1960) (by James N Buechler)
41. Clue of the Screeching Owl (1962) (by James N Buechler)
42. Viking Symbol Mystery (1962) (by Alistair M Hunter)
43. Mystery of the Aztec Warrior (1964) (by Harriet Stratemeyer Adams)
44. The Haunted Fort (1964) (by David Grambs)
45. Mystery of the Spiral Bridge (1965) (by Andrew E Svenson)
46. Secret Agent on Flight 101 (1967) (by Thomas Mulvey)
47. The Mystery of the Whale Tattoo (1967) (by Jerrold Mundis)
48. The Arctic Patrol Mystery (1969) (by Andrew E Svenson)
49. The Bombay Boomerang (1970) (by Vincent Buranelli)
50. Danger on Vampire Trail (1971) (by Andrew E Svenson)
51. The Masked Monkey (1972) (by Vincent Buranelli)
52. The Shattered Helmet (1973) (by Andrew E Svenson)
53. The Clue of the Hissing Serpent (1974) (by Andrew E Svenson)
54. The Mysterious Caravan (1975) (by Andrew E Svenson)
55. The Witchmaster's Key (1975) (by Vincent Buranelli)
56. The Jungle Pyramid (1976) (by Vincent Buranelli)
57. The Firebird Rocket (1977) (by Vincent Buranelli)
58. The Sting of the Scorpion (1978) (by Jim Lawrence)
59. Night of the Werewolf (1979) (by Jim Lawrence)
60. Mystery Of The Samurai Sword (1979) (by Jim Lawrence)
61. The Pentagon Spy (1980) (by Vincent Buranelli)
62. The Apeman's Secret (1980) (by Jim Lawrence)
63. The Mummy Case (1980) (by Vincent Buranelli)
64. Mystery Of Smugglers Cove (1980) (by Vincent Buranelli)
65. The Stone Idol (1980) (by Vincent Buranelli)
66. The Vanishing Thieves (1980) (by Richard Deming)
67. The Outlaw's Silver (1981) (by Jim Lawrence)
68. The Submarine Caper (1981) (by Conrad Fuchs)
     aka Deadly Chase
69. The Four-Headed Dragon (1981) (by Laurence Swinburne)
70. The Infinity Clue (1981) (by Karl Harr III)
71. Track Of The Zombie (1982) (by Vincent Buranelli)
72. The Voodoo Plot (1982) (by Karl Harr III)
73. The Billion Dollar Ransom (1982) (by Laurence Swinburne)
74. Tic-Tac-Terror (1982) (by Jim Lawrence)
75. Trapped At Sea (1982) (by Vincent Buranelli)
76. Game Plan For Disaster (1982) (by Laurence Swinburne)
77. The Crimson Flame (1983) (by Vincent Buranelli)
78. Cave-in (1983) (by Karl Harr III)
79. Sky Sabotage (1983) (by Karl Harr III)
80. The Roaring River Mystery (1984) (by Unknown)
81. The Demon's Den (1984) (by Unknown)
82. The Blackwing Puzzle (1984) (by Unknown)
83. The Swamp Monster (1985) (by Neal Barrett Jr)
84. Revenge Of The Desert Phantom (1985) (by Unknown)
85. The Skyfire Puzzle (1985) (by Unknown)
86. The Mystery Of The Silver Star (1987) (by Unknown)
87. Program For Destruction (1987) (by Unknown)
88. Tricky Business (1987) (by Unknown)
89. Sky Blue Frame (1988) (by Unknown)
90. Danger On the Diamond (1988) (by Unknown)
91. Shield of Fear (1988) (by Unknown)
92. Shadow Killers (1988) (by Unknown)
93. The Serpent's Tooth Mystery (1988) (by Unknown)
94. Breakdown in Axeblade (1989) (by Unknown)
95. Danger on the Air (1989) (by Unknown)
96. Wipeout (1989) (by Unknown)
97. Cast of Criminals (1989) (by Unknown)
98. Spark of Suspicion (1989) (by Unknown)
100. The Secret of the Treasure (1990) (by Unknown)
101. The Money Hunt (1990) (by Unknown)
102. Terminal Shock (1990) (by Unknown)
103. The Million-Dollar Nightmare (1990) (by Unknown)
104. Tricks of the Trade (1990) (by Unknown)
106. Attack of the Video Villains (1991) (by Unknown)
107. Panic on Gull Island (1991) (by Unknown)
108. Fear On Wheels (1991) (by Unknown)
109. The Prime-Time Crime (1991) (by Unknown)
110. Secret of Sigma Seven (1991) (by Unknown)
111. Three-Ring Terror (1991) (by Unknown)
112. Demolition Mission (1992) (by Unknown)
113. Radical Moves (1992) (by Unknown)
114. The Case of the Counterfeit Criminals (1992) (by Unknown)
115. Sabotage At Sports City (1992) (by Unknown)
116. Rock 'n' Roll Renegades (1992) (by Unknown)
117. Baseball Card Conspiracy (1992) (by Unknown)
118. Danger in the Fourth Dimension (1993) (by Unknown)
119. Trouble At Coyote Canyon (1993) (by Unknown)
120. The Case of the Cosmic Kidnapping (1993) (by Unknown)
121. The Mystery in the Old Mine (1993) (by Unknown)
122. Carnival of Crime (1993) (by Unknown)
123. Robots's Revenge (1993) (by Unknown)
124. Mystery with a Dangerous Beat (1994) (by Unknown)
126. Racing to Disaster (1994) (by Unknown)
127. Reel Thrills (1995) (by Unknown)
128. Day of the Dinosaur (1994) (by Unknown)
129. The Treasure at Dolphin Bay (1994) (by Unknown)
132. Maximum Challenge (1995) (by Unknown)
133. Crime in the Kennel (1995) (by Unknown)
134. Cross Country Crime (1995) (by Unknown)
135. The Hypersonic Secret (1995) (by Unknown)
136. The Cold Cash Caper (1996) (by Unknown)
137. High-Speed Showdown (1997) (by Unknown)
138. The Alaskan Adventure (1996) (by Unknown)
139. The Search for the Snow Leopard (1996) (by Unknown)
140. Slam Dunk Sabotage (1996) (by Unknown)
141. The Desert Thieves (1996) (by Unknown)
142. Lost in Gator Swamp (1997) (by Unknown)
143. The Giant Rat of Sumatra (1997) (by Unknown)
144. The Secret of Skeleton Reef (1997) (by Unknown)
145. Terror at High Tide (1997) (by Unknown)
146. The Mark of the Blue Tattoo (1997) (by Unknown)
147. Trial and Terror (1997) (by Unknown)
148. The Ice Cold Case (1998) (by Unknown)
149. The Chase for the Mystery Twister (1998) (by Unknown)
150. The Crisscross Crime (1998) (by Unknown)
151. The Rocky Road to Revenge (1998) (by Unknown)
152. Danger in the Extreme (1998) (by Unknown)
153. Eye on Crime (1998) (by Unknown)
156. A Will to Survive (1999) (by Unknown)
157. The Lure of the Italian Treasure (1999) (by Unknown)
158. The London Deception (1999) (by Unknown)
159. Daredevils (1999) (by Unknown)
160. A Game Called Chaos (1999) (by Unknown)
161. Training for Trouble (2000) (by Unknown)
162. The End of the Trail (2000) (by Unknown)
163. The Spy That Never Lies (1999) (by Unknown)
164. Skin and Bones (2000) (by Unknown)
165. Crime in the Cards (2001) (by Unknown)
167. Trouble Times Two (2001) (by Unknown)
168. The Castle Conundrum (2001) (by Unknown)
169. Ghost of a Chance (2001) (by Unknown)
170. Kickoff to Danger (2001) (by Unknown)
171. The Test Case (2002) (by Unknown)
172. The Trouble in Warp Space (2002) (by Unknown)
173. Speed Times Five (2002) (by Unknown)
174. Hide and Sneak (2002) (by Unknown)
175. Trick-Or-Trouble (2002) (by Unknown)
176. In Plane Sight (2002) (by Unknown)
177. The Case of the Psychic's Vision (2003) (by Unknown)
178. The Mystery of the Black Rhino (2003) (by Unknown)
180. Typhoon Island (2003) (by Unknown)
181. Double Jeopardy (2003) (by Unknown)
183. Warehouse Rumble (2004) (by Unknown)
184. The Dangerous Transmission (2004) (by Unknown)
185. Wreck and Roll (2004) (by Unknown)
186. Hidden Mountain (2004) (by Unknown)
188. Farming Fear (2004) (by Unknown)
189. One False Step (2005) (by Unknown)
190. Motocross Madness (2005) (by Unknown)