Tim Gregory is a research scientist at the British Geological Survey in Nottingham, where he studies the geology of the early solar system using meteorites. He has a PhD from the University of Bristol and lives in Nottingham, UK.
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Brother detectives Frank and Joe face the dangers of Black Bear Mountain once again in the twentieth book in the thrilling Hardy Boys Adventures series. Frank and Joe are back on Black Bear Mountain, the scene of a previous wilderness adventure and mi... SEE MORE