Title rated 4.1 out of 5 stars, based on 24 ratings(24 ratings)
Book, 1979
Current format, Book, 1979, , Available .
Book, 1979
Current format, Book, 1979, , Available . Offered in 0 more formats
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.
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