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Cover of Flaming Terror; The Morale Murder Menace; The Case of the Eager Diplomat; Mastermind; The Monster of Negley Hall; The Shining Castle of Ra; Tapping the Code; The Mystery of the Missing Stars
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Flaming Terror; The Morale Murder Menace; The Case of the Eager Diplomat; Mastermind; The Monster of Negley Hall; The Shining Castle of Ra; Tapping the Code; The Mystery of the Missing Stars

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