Yes, there was the tapestry door.
She pushed it open very gently and closed it behind her, and she stood in the corridor and could hear the crying quite plainly, though it was not loud.

It was on the other side of the wall at her left and a few yards farther on there was a door.

She could see a glimmer of light coming from beneath it.

The Someone was crying in that room, and it was quite a young Someone.
So she walked to the door and pushed it open, and there she was standing in the room! It was a big room with ancient, handsome furniture in it.

There was a low fire glowing faintly on the hearth and a night light burning by the side of a carved four-posted bed hung with brocade, and on the bed was lying a boy, crying fretfully.
Mary wondered if she was in a real place or if she had fallen asleep again and was dreaming without knowing it.
The boy had a sharp, delicate face the color of ivory and he seemed to have eyes too big for it.