Sephy is a Cross - a member of the dark-skinned ruling class. Callum is a nought - a 'colourless' member of the underclass who were once slaves to the Crosses. The two have been friends since early childhood. But that's as far as it can go.
"Blackman's absorbing but alarming novel deals with themes of racism and prejudice . . . Unforgettable" Independent 20080207
MALORIE BLACKMAN has written over fifty books and is acknowledged as one of today's most imaginative and convincing writers for young readers. She has been awarded numerous prizes for her work, including the Red House Children's Book Award and the Fantastic Fiction Award. Malorie has also been shortlisted for the Carnegie Medal. In 2005 she was honoured with the Eleanor Farjeon Award in recognition of her contribution to children's books, and in 2008 she received an OBE for her services to children's literature. She has been described by The Times as 'a national treasure'. Malorie Blackman is the Children's Laureate 2013-15.