* Anticipation and excitement: The initial sections are filled with a sense of impending transformation and the thrill of the upcoming Pretty operation. This is fueled by the societal pressure and the girls' own desires for beauty.
* Dystopian unease: Underlying the excitement is a persistent sense of unease. The reader gradually becomes aware of the repressive nature of the society, the superficiality of its values, and the underlying darkness concealed beneath the seemingly perfect surface. This creates a feeling of tension and suspicion.
* Rebelliousness and defiance: As Tally's understanding of the "perfect" society deepens, so does her rebellious spirit. The mood becomes more defiant and determined as she questions the system and chooses her own path.
* Friendship and loyalty: The strong bonds of friendship between Tally and her friends, particularly Shay, create moments of warmth and camaraderie that contrast with the dystopian setting. These moments provide a more hopeful, though still uncertain, mood.
* Suspense and mystery: The unfolding plot, involving secrets, betrayals, and dangerous choices, adds a layer of suspense and mystery. The reader is kept guessing and wondering what will happen next, creating a mood of anticipation and concern.
In short, the mood of *Uglies* isn't static. It's a dynamic mix of excitement, unease, rebellion, friendship, and suspense, all contributing to the overall captivating and thought-provoking nature of the story.