Everyone in Kizzy's town hates her because she's half-gypsy – a diddakoi. But Kizzy doesn't care. All she needs is Gran and her horse, Joe. But when Gran dies and their wagon burns down, Kizzy is all alone. No one wants to look after her and her beloved Joe might get sent to the knacker's yard. Can Kizzy survive in a hostile world – and save Joe?