French writer Jacques Bergier in his book traces the dramatic fate of a number of amazing manuscripts, manuscripts and books from ancient times to the present day. This is the mysterious "Book of Thoth," "Stansy Jiang," a book that deprives of reason - "Excalibur," a manuscript of the work of the Russian scientist M. M. Filippov and some others. All these creations of the human mind were destroyed in one way or another. And the reason for this phenomenon, to which the author refers and the ruin of the famous Alexandria Library, the greatest treasury of human knowledge, J. Bergier sees in one thing: their content threatened the existence of earthly civilization.