Naughts & Crosses by Malorie Blackman

In an alternate Britain where a dark-skinned ruling class dominates and a light-skinned underclass is systematically oppressed, the story follows two childhood friends from opposite sides of the divide whose forbidden love and diverging life paths expose the brutality of institutional racism, the corrosive effects of prejudice and power, and the ways political violence and personal betrayal can shatter lives and hope.

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