Well, there's nothing to play with indoors, is there? Mary realized Martha was right.
'But who will go with me?' she said.
Martha stared at her. 'Nobody. You'll have to learn to play by yourself. Dickon plays by himself on the moors for hours, with the wild birds, and the sheep, and the other animals.' She looked away for a moment. 'Perhaps I shouldn't tell you this, but - but one of the walled gardens is locked up. Nobody's been in it for ten years. It was Mrs Craven's garden, and when she died so suddenly, Mr Craven locked it and buried the key - Oh, I must go, I can hear Mrs Medlock's bell ringing for me.'