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9781101076675 (electronic bk)
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|| During Mr. Hardy's investigation of a ruthless gang of terrorists, Frank and Joe witness an explosion in the sky near an airborne dirigible owned by Quinn Air Fleet. The young detectives look into a clue that takes them into a new animal park outside Bayport, where they are lured into a trap by an unknown enemy. Problems arise for the park owner as he receives pressure from a competitor and a real-estate firm to sell out. Strange occurrences at the park also frighten the visitors and animals. Frank and Joe take up the case despite fore warnings.
|| Electronic reproduction. New York : Grosset & Dunlap, 1978. Requires OverDrive Read (file size: N/A KB) or Adobe Digital Editions (file size: 1543 KB) or Amazon Kindle (file size: N/A KB).