The night is dark. Suddenly, a light appears, moving across the sky. Then another. And another. They are travelling quickly. Very quickly. Are they aeroplanes, or meteors, or are they something very strange? Have these unidentified flying objects come from another planet? This book does not answer these questions, but it does look at some of the most famous U.F.O. stories. Do you think that they are true?
See More Educational: English language: readers & reading schemes
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