A change is as good as a holidaybut for Selby, the two go hand in hand. to coincide with the summer school holidays, HarperCollins will re-release four Selby favourites with a fresh new look. Selby Sorcerer Willia and Billia, the trifle's terrible nephews, are again up to no good. Selby can end their havocth magic, but for how long? Ages 7-12