Knife Edge (#2)

Malorie Blackman

Sephy is a Cross, one of the privileged in a society where the ruling Crosses treat the pale-skinned noughts as inferiors. But her baby daughter has a nought father-Jude is a nought. Eaten up with bitterness, he blames Sephy for the terrible losses his family has suffered-Now Jude's life rests on a knif...