Dexter Knox appears in 4 issues in this volume.
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Issue #6
Better Late Than Never / Dexter Knox and His Electric Grandmother
October 1973
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Issue #13
The Case of the Charming Crook! / The Haunted Clubhouse!
August 1, 1974
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Issue #18
The Celebrated Talking Frog of Blackstone Forest / The Coin-Operated Caper!
June 1, 1975
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Issue #26
The Case of the Kidnapped Congress
November 1976
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