this book is set in a world where black and white is right and wrong. Malorie Blackman skilfully avoids mentioning time and place which focuses on the novel being set in a bubble of racial injustice. This provocative book makes us think about race in a totally different way through the two main characters as they struggle to keep their friendship alive. Callum is a nought –a second class citizen- in a world dominated by crosses. Sephy is a cross and daughter to one of the most powerful men in the country. The introduction of these two characters causes us to dive straight into their deep fondness for each other, we feel intertwined with their every thought and feeling due to the chapters alternating between both character’s diaries. The stereotypical ideas most people are brought up with about racism, led me to assume that Callum would be black, however Malorie Blackman has used the clever device of turning these preconceived ideas upside down to make sure that her point is well and truly made. As the lives of these two characters progress, they realise that they want more than friendship from each other but as harsh reality takes it’s toll we are left bitter and wishing for a world not divided by colour or class. As we arrive to the end of this riveting book, the momentous ending whacks an unforgettable punch and we can’t help but be left breathless. This book would inspire passion onto even the most heartless person. It’s laugh out loud funny and cry your heart out sad. The dramatic and moving plot line achieves what any good book should; leave you wanting more. It’s filled to the brim with love and hate, wrong and right, injustice and hope. Malorie Blackman has created a masterpiece from which you feel reluctant to leave. An incredible novel that should be read by all!