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Sci. Ch. - Secrets of the Underground Mystery of the Ice Cave (2017)
Sci. Ch. - Secrets of the Underground Mystery of the Ice Cave (2017) 
Secrets of the Underground Mystery of the Ice Cave
A strange cave freezes in the summer and melts in the winter, and a massive sand dune swallows a small child in an instant. Rob Nelson and Stefan Burns use cutting-edge technology to investigate these mysteries of the natural world.
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