'What happened to Olive wasn't because she's only ever felt half. It didn't even happen because her house was full of crap-knacks and clutter, because she called her mother Mog, or because she knew of a man named williamPetersMustardSeed. It wasn't because she had a peculiar relationship with the number two, or because her skin was the exact color of chicken loaf. Although there was never any doubt that it was a shake-it-all-about hokey-pokey of all these things, what happened to Olive couldn't have happened without Mathilda Graham. Olive Garnaut likes things in pairs. But even with her own perfectly symmetrical family, birthday and bedroom, Olive has only ever felt half. How extraordinary, then, that one day Pip should appear...