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THE MASTER KEY

[Illustration: Rob was surrounded by a group of natives]




  THE
  MASTER KEY

  _An Electrical Fairy Tale_

  FOUNDED UPON THE MYSTERIES OF ELECTRICITY
  AND THE OPTIMISM OF ITS DEVOTEES. IT WAS
  WRITTEN FOR BOYS, BUT OTHERS MAY READ IT


  BY
  L. FRANK BAUM

  ILLUSTRATIONS BY
  F. Y. CORY



  _The_ BOWEN-MERRILL COMPANY
