The Master Key

"Founded Upon The Mysteries Of Electricity And The Optimism Of Its Devotees. It Was Written For Boys, But Others May Read It." With 47 illustrations. According to Wikipedia: "The Master Key: An Electrical Fairy Tale, Founded Upon the Mysteries of Electricity and the Optimism of Its Devotees is a 1901 novel by L. Frank Baum, author of The Wonderful Wizard of Oz... The protagonist is a boy named ...