A Time for Tigers Author:Robert Burgess While fishing in the Gulf of Mexico, Shandy's landing of a tiger shark lands him and his friend in the thick of a dangerous adventure. Inside the shark is an electronic sensor that emits signals whose origins the United States government is searching for. After being enticed aboard an oceanographic vessel, the two boys end up imprisoned on a C... more »aribbean island, where they discover and try to stop a deadly nuclear plot against the United States.« less