On Wednesdays, Terry was a snail. Her little body slithered in slow motion. She enjoyed sucking at the mirror. She liked the cold feel against her lips, the perfect evenness of the surface. At lunchtime, her mum fed her salad in a flat bowl. For dinner she took little bites of a cucumber. Her brothers, Michael and Tim, had tried to annoy her at first. They were cruel, moving the bowl every time Terry attempted to pick up a salad leaf with her tongue. Now, they didn’t bother anymore, for they knew that on Thursday she would be their sister again.