From Wikipedia: The Demon opens with the eponymous protagonist wandering the earth, hopeless and troubled. He dwells in infinite isolation, his immortality and unlimited power a worthless burden. Then he espies the beautiful Princess Tamara, dancing for her wedding. The Demon courts Tamara, and Tamara knows fear, yet in him she sees not a demon nor an angel but a tortured soul. Eventually she yields to his embrace, but their relationship does not end happily... This is a reproduction of a 1918 edition.