| #2 |  The Chase
| 4.2 |
| #4 |  The Spy
| 3 |
| #5 |  The race
| 3.33 |
| #6 |  The Thief
| 4 |
| #7 |  The Striker
| 4 |
| #8 |  The Bootlegger
| 4 |
| #9 |  The Assassin
| 2.5 |
| #10 |  The Gangster
| 4 |
| #11 |  The Cutthroat
| 4 |
| #12 |  First Deadly Conspiracy
| 3 |
| #13 |  Untitled Isaac Bell 12
| 4 |
| #14 |  Stalker on the Fens Stalker on the Fens
| 4 |
| #15 |  Hunted on the Fens Hunted on the Fens
| 4 |
| #16 |  The Night Thief
| 4.75 |
| #17 |  Buried on the Fens Buried on the Fens
| 4 |
| #18 |  Thieves On The Fens
| 4 |
| #19 |  Darkness on the Fens Darkness on the Fens
| 4 |
| #20 |  Hidden on the Fens
| 4 |
| #21 | Fire on the Fens Fire on the Fens
| 4 |
| #22 |  Fear on the Fens
| 3 |
| #23 |  Secrets on the Fens Secrets on the Fens
| 4 |
| #24 |  The Titanic Secret
| 3.5 |
| #25 |  The Gray Ghost
| 3.33 |
| #26 | Beware the Past Beware the Past
| 4 |
| #27 |  Captive on the Fens Captive on the Fens
| 4 |
| #28 |  Shadow Over the Fens Shadow Over the Fens
| 4 |
| #29 |  Crime on the Fens
| 4 |
| #30 |  Killer on the Fens
| 4 |
| #31 |  They Disappeared
| 3.67 |
| #32 |  The Stolen Boys
| 4 |
| #33 | The Fourth Friend The Fourth Friend
| 4 |
| #34 |  Their Lost Daughters
| 4 |
| #35 |  The Patient Man
| 4.5 |
| #36 |  The Sea Wolves
| 5 |
| #37 |  Graves on the Fens
| 4 |
| #38 |  Crescent Dawn
| 3.57 |
| #39 | Five Bloody Hearts Five Bloody Hearts
| 4 |
| #40 |  Pacific Vortex!
| 3.71 |
| #41 |  The Mediterranean Caper
| 2.92 |
| #42 |  The Dying Light
| 4 |
| #43 | The River's Edge The River's Edge
| 4 |
