What happens in part 2 in the knife of never letting go?

In Part 2 of "The Knife of Never Letting Go" by Patrick Ness, Todd discovers that his world is filled with more dangers than he initially thought. He learns about the true nature of the Noise, the constant thoughts audible to everyone, and the dark secrets held by the adults in his community. As he navigates through the chaos, Todd's journey becomes increasingly perilous, leading him to question the very foundations of his reality and the motivations of those around him. His bond with the mysterious girl he encounters deepens, driving the narrative toward a confrontation with the oppressive forces of his society.