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In this book, a party sent out by the Hudson Bay Company build a fort upon what they believe to be an island, but, upon discovering, after a while, that the sun has totally changed its place of rising, they find that they are really upon a floating ice-floe, and this gradually dwindles in size, frightening the voyagers, and bringing into play all their ingenuity.

This book is, without question, the most readable wonder-story in modern literature