The narrative of this short story immediately draws the reader into an uplifting, idyllic mood. The tale starts with dreamy, excited series of descriptions of the idyllic Summer Festival in the city of Omelas. This beginning is joyful and utopian, making the reader feel invested in the perfection of the city. The festive atmosphere, which is full of music and laughter, invites readers to immerse themselves in the good things about the city. It seems extremely appealing, as does the entire initial mood of the story. The reader feels enchanted with Omelas and optimistic about the Summer Festival to come that day.
However, the mood undergoes an extreme shift when Le Guin introduces the suffering child upon whose misery Omelas’s happiness depends. This revelation hits the reader with a sense of dismay and horror; after the delightful descriptions of marine air and ringing bells, the filth and darkness of the child’s cell seem especially awful. The contrast between the city's outward joy and the hidden suffering of the child makes the mood suddenly dissonant and jarring. This mood shift challenges the idea that Omelas is a paradise and introduces a layer of complexity and qualification to its stunning perfection. The reader feels shock and discomfort as they’re confronted with this moral conflict, and they're forced to consider what they would do in the same situation if faced with such a choice.