Callum is a nought - a "colourless" member of the underclass, a second-class citizen in a world run by the ruling Crosses . . . Sephy is a Cross, a member of the dark-skinned ruling class, daughter of one of the most powerful men in the country . . . The two have been friends since early childhood. But that's as far as it can go.
In their world, noughts and Crosses simply don't mix. Until the first steps are taken towards more social equality and a limited number of noughts are allowed into Crosses schools . . . As hostility turns to violence, can Callum and Sephy possibly find a way to be together. They are determined to try.
And then the bomb explodes . . .
A gripping, stimulating and totally absorbing novel set in a world where black and white are right and wrong.