"Farewell, farewell," said the swallow, with a heavy heart, as he left the warm countries, to fly back into Denmark. There he had a nest over the win… - Hans Christian Andersen

"Farewell, farewell," said the swallow, with a heavy heart, as he left the warm countries, to fly back into Denmark. There he had a nest over the window of a house in which dwelt the writer of fairy tales. The swallow sang "Tweet, tweet," and from his song came the whole story.