This debut novel written by Ben Rice is actually two novellas back-to-back: you read one, flip it over, and there's the other. It's a nice touch that suits these playful stories, written about children for adults. Pobby and Dingan concerns two imaginary friends who disappear down an Aussie opal mine. Their human pal, Kellyanne, begins to waste away with worry, while her brother, Ashmol, mobilises the whole town to search for them.