The Master Key: An Electrical Fairy Tale, published in 1901 by L. Frank Baum, follows a young boy named Rob who becomes captivated by electricity. After creating various electrical devices in his attic workshop, he accidentally summons the Demon of Electricity using the Master Key, who grants him three extraordinary gifts. This children's fantasy novel blends adventure with scientific exploration, showcasing the wonders of electricity and the imaginative spirit of youth. Illustrated by F. Y. Cory, it reflects the optimism surrounding electrical innovation at the turn of the century.
