A single ball came through at deck level, It struck a burst of sparks from the steel hull, like Brocks Fireworks at Crystal palace, brilliant orange even in the strong sunlight, and the hole it tore through Black Jokes plating was fringed with bare jagged tongues of metal like the petals of a silver sunflower. In search of a father they barely remember, Zouga and Dr Robyn Ballantyne board Mu…