Two brave wanderers Roodle and Burdle from the Traveling People find themselves in a certain country suffering an ecological disaster, the sun and moon have changed places, and, as befits a mythical fairy tale, even the Wise Raven, the confidant and teacher of the Month, does not know a way out the current situation. The country is in danger of dying from lack of sleep, the mountains are suffering from fever, the lunatics are suffering from hysteria, the flying cows are not giving out sleepy milk... A professor in love, who fled from the civilized world into the wild, without knowing it, becomes the culprit of the disasters that have befallen the country. Rudle and Burdle are trying to understand what happened and... A fairy tale for middle-aged and older children by a modern Russian writer, author of the novel “Vladimir Chigrintsev” and other works known to the reader.