| #2 |  The Tower Treasure
| 3.5 | 34 reads | |
| #3 |  The House on the Cliff
| 3.13 | 14 reads | |
| #4 |  The Missing Chums
| 3 | 7 reads | |
| #5 |  Hunting for hidden gold
| 3.67 | 8 reads | |
| #6 |  The great airport mystery
| 3 | 5 reads | |
| #7 |  The Secret of the Caves
| 3 | 3 reads | |
| #8 |  The Shore Road Mystery
| 3 | 7 reads | |
| #9 |  What Happened at Midnight
| 3.5 | 7 reads | |
| #10 |  While the Clock Ticked
| 3.6 | 7 reads | |
| #11 |  The Hidden Harbor Mystery
| 3 | 4 reads | |
| #12 |  Hardy Boys 16: a Figure in Hiding
| 0 | 0 reads | |
| #13 |  The Sinister Sign Post
| 3.33 | 4 reads | |
| #14 |  The mystery of the disappearing floor.
| 3.4 | 6 reads | |
| #15 |  The clue of the broken blade
| 3 | 3 reads | |
| #16 |  Mystery of the Flying Express
| 3 | 3 reads | |
| #17 |  The melted coins
| 3 | 3 reads | |
| #18 |  The Secret Panel
| 3.3 | 6 reads | |
| #19 |  The Short-Wave Mystery
| 3 | 3 reads | |
| #20 |  The Secret of Skull Mountain
| 3 | 3 reads | |
| #21 |  The Secret of the Lost Tunnel
| 3 | 3 reads | |
| #22 |  The Secret of Pirates' Hill
| 3.33 | 4 reads | |
| #23 |  The Ghost at Skeleton Rock
| 3.33 | 4 reads | |
| #24 |  The Clue in the Embers
| 3 | 3 reads | |
| #25 |  The mystery of the Chinese junk
| 3 | 3 reads | |
| #26 |  The Clue of the Screeching Owl
| 3 | 3 reads | |
| #27 |  The Viking Symbol Mystery
| 3 | 3 reads | |
| #28 |  The haunted fort
| 3 | 4 reads | |
| #29 |  The mystery of the spiral bridge
| 3 | 3 reads | |
| #30 |  The secret agent on Flight 101
| 2.67 | 4 reads | |
| #31 |  The Witchmaster's Key
| 3 | 3 reads | |
| #32 |  The Mysterious Caravan
| 3.33 | 5 reads | |
| #33 |  Night of the werewolf
| 3 | 4 reads | |
| #34 |  The Jungle Pyramid
| 3 | 3 reads | |
| #35 |  The Apeman's Secret
| 3 | 3 reads | |
| #36 |  The Mummy Case
| 3 | 3 reads | |
| #37 |  Mystery of Smugglers Cove
| 3 | 3 reads | |
| #38 |  The Outlaw's Silver
| 3 | 1 read | |
| #39 |  Spinners
| 0 | 1 read | |
| #40 |  Motherless Brooklyn
| 3.86 | 35 reads | |
| #41 |  The Mystic Arts of Erasing All Signs of Death
| 3.67 | 4 reads | |
| #42 |  The Yiddish Policemen's Union
| 3.61 | 103 reads | |
| #43 |  Gun Machine
| 4.1 | 20 reads | |
| #44 |  The Fifth Heart
| 3.67 | 8 reads | |
| #45 |  Crooked Little Vein
| 3.59 | 17 reads | |
| #46 |  The Complete Sherlock Holmes
| 4.51 | 163 reads | |
| #47 |  El Laberinto de los Espíritus
| 4.33 | 39 reads | |
| #48 |  Slow Motion Ghosts
| 0 | 0 reads | |
| #49 |  Creeping Jenny Creeping Jenny
| 2 | 1 read | |
| #50 |  The Album of Dr. Moreau
| 4.29 | 7 reads | |
| #51 |  Station Eternity
| 3.65 | 52 reads |
