The Secret Agent on Flight 101
Franklin W. Dixon
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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 of Wildcat Swamp
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The Secret Warning
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The Shore Road Mystery
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The Sign of the Crooked Arrow
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Mystery at Devil's Paw
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Mystery of Cabin Island
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The Viking Symbol Mystery
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The Wailing Siren Mystery
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Thick as Thieves
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Mystery of the Aztec Warrior
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Mystery of the Chinese Junk
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Three-Ring Terror
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Too Many Traitors
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Tower Treasure
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Trouble in the Pipeline
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Twisted Claw
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Mystery of the Desert Giant
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Mystery of the Flying Express
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Mystery of the Spiral Bridge
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What Happened at Midnight
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Mystery of the Whale Tattoo
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Nightmare in Angel City
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Nowhere to Run
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Perfect Getaway
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Running on Empty
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Scene of the Crime
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While the Clock Ticked
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Without a Trace
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