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Jack London
The Art of War
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Defeat the Darkness
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Fortune's Secret Marriage
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Danger Zone
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The Dead Season
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The Deadliest Dare
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Dead on Target
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Deathgame
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The Genius Thieves
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The Great Airport Mystery
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The Haunted Fort
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Diplomatic Deceit
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Disappearing Floor
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The House on the Cliff
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Disaster for Hire
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Double Exposure
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Edge of Destruction
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The Infinity Clue
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The Jungle Pyramid
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Final Cut
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Flesh and Blood
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Footprints Under the Window
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The Last Laugh
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The Lazarus Plot
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The Missing Chums
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Fright Wave
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Ghost at Skeleton Rock
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Highway Robbery
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The Number File
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The Pacific Conspiracy
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The Phantom Freighter
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Hostages of Hate
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Hunting for Hidden Gold
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The Secret of Pirates' Hill
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The Secret of Skull Mountain
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The Secret of the Caves
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Line of Fire
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Mark on the Door
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Melted Coins
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The Secret Warning
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The Shore Road Mystery
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Mystery of Cabin Island
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Thick as Thieves
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Three-Ring Terror
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Too Many Traitors
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Tower Treasure
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Twisted Claw
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What Happened at Midnight
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