says

Our sister lives in a faraway city near a lake. She has learnt the language and she says she likes the crisp days of winter and the grey sky. She has sworn never to come back. Sometimes, we receive a postcard with all the buildings painted in black. We know it's her. Mother does not allow us to talk about her, Father looks away into the horizon. Her room is closed, only the maid goes in to clean the dust off.