Final answer:
In James Joyce's 'Araby', the narrator does not reveal the name of Mangan's sister, emphasizing the theme of unattainable love and idealization.
Step-by-step explanation:
The narrator in "Araby" by James Joyce never actually reveals the name of Mangan's sister throughout the story. Her name is left unspecified, representing perhaps the elusive nature of the narrator's infatuation or the distance between his idealized view of her and her actual personhood. This omission serves as a literary device to underscore the theme of youthful longing and the idolization of love.
The name of Mangan's sister is not revealed at the end of the story 'Araby'.