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Robert Walton was on his way to explore the top of the world. Dear Margaret, he wrote to his sister. I have gone as far as I can by land! Later I will find a ship and the men to sail her. But now my first duty is to write to let my dear little sister know I’m all right! No one has ever reached the North Pole before. People say it must be cold and empty of life. I think it will be beautiful! I will explore where no one has walked before! I will find a way for ships to sail to the other side of the world! I will discover secrets of nature than no one else knows! Think of all the people I will help with what I learn.