Scrooge and his nephews, who are there to support his healing, finally locate the mythical place in a deep valley high in the Himalayas and arrive by parachute. There they get acquainted with a more peaceful existence than to which they were accustomed.
However, as Scrooge seems to be healing he doesn't realise he brought his troubles with him. He brought bottles of his medication along; the bottle caps he discards are considered rare treasures in Tralla La and become the basis of a new monetary system! The Ducks must flee, as they apparently cannot find peace even in an Earthly paradise.
Scrooge's effort this time is not to gain treasure but find some peace and regain his health. But, as so often presented in Barks tales, in trying to escape his problems he only manages to carry them with him. Tralla La (based on Shangri-La) inhabitants prove to share the human characteristic of greed and Barks is allowed some bitter commentary on human nature.
The theme of never finding peace no matter how hard the characters try is a running theme in Barks' tales but here it takes center place. It is considered among Barks' most memorable because of its view of humanity, paradises and the vulnerability of his characters.
Don Rosa wrote a sequel to the story, Return To Xanadu, in which Tralla La is revealed to be the valley of Xanadu. Return to Xanadu was first published in the United States in Uncle Scrooge #261-262 (October-November 1991) and reprinted in #357 (September, 2006).