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Thus you may determine by a single look the true natures of all those you encounter." The good will bear the letter 'G,' the evil the letter 'E.' The wise will be marked with a 'W' and the foolish with an 'F.' The kind will show a 'K' upon their foreheads and the cruel a letter 'C. Haanel Introduction by: Jayaram V Originally published: 1991. While you wear them every one you meet will be marked upon the forehead with a letter indicating his or her character. One of these gifts is a "Character Marker" introduced on p.
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Frank Baum's 1901 illustrated novel, The Master Key: An Electrical Fairy Tale, Founded Upon the Mysteries of Electricity and the Optimism of its Devotees, describes the adventures of a 15 year old boy who experiments with electricity and accidentally touches "the Master Key of Electricity," encountering a Demon who gives him various gifts.