Jo can't bear the attitude of peole around her: the teacher who wants to help but can't face the truth that Jo's half black (not just half-white); Straker, the bully who torments and follows her; and most of all, her mum, who refuses to talk about the past and allow Jo to find out about her real dad. That's why she needs Mit - he takes her to a secret world beyond reality, a place where Jo can decide who she really is.