Today, the Hunting Lodge called Mayerling, is a nunnery - but the room where Rudolph and Marie died, by whatever hand, is kept as a shrine. Romantic and curious tourists come there often. On a day not long ago, there came a pair of young Americans. Kitty Scott taught English at a Viennese school, and David Carlton, on a tour of Europe, met Kitty, fell in love and stopped touring.