L. Frank Baum 
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

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. These things are quite improbable, to be sure; but are they impossible? Our big world rolls over as smoothly as it did centuries ago, without a squeak to show it needs oiling after all these years of revolution. But times change because men change, and because civilization, like John Brown’s soul, goes ever marching on. The impossibilities of yesterday become the accepted facts of to-day. Here is a fairy tale founded upon the wonders of electricity and written for chil dren of this generation Yet when my readers shall have become men and women my story may not seem to their children like a fairy tale at all.