Naked Empire by Terry Goodkind

When the central heroes discover a secluded, centuries-isolated people trapped behind a mysterious magical boundary and ruled by oppressive, violent customs, they are drawn into a desperate fight to protect the vulnerable and challenge the forces—both magical and political—that would enslave or destroy them; caught between ruthless enemies and painful moral choices, the protagonists must use cunning, sorcery, and conviction to break the cycle of fear and confront what freedom and responsibility truly require.

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