The final chapter of this exciting trilogy finds the Hardys facing their most dangerous mission ever as they avenge their father's death and stop an international espionage ring. Frank and Joe infiltrate Phoenix Enterprises to uncover the spy ring's mastermind, and find an unlikely ally--a young woman whose father--a Phoenix partner--was also murdered.
This is Book 66 in the Hardy Boys Casefiles S. Series. See all Hardy Boys Casefiles S. books here.
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Franklin W. Dixon is the author of the ever-popular Hardy Boys books.
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