Leon has just moved into town with his mum. He is quite a contented boy, because he has a best friend, Bob, who shares his room and goes everywhere with him. No one else can see Bob, but that is not important to Leon. He walks with him to school and reads his dad's letters to him. One day Leon happens to see a boy next door, and he decides to ask him to play. Oddly, as Leon climbs the steps of the house next door, Bob disappears, and the new friend turns out to be....Bob! Muted water colour illustrations convey perfectly the feel of loneliness. Superb! Leon is black and Bob is white.