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