Her face was singularly intelligent, her voice clear and quick, her eyes often much too mournful for the eyes of a child, but sometimes flashing with fun, as, for instance, when Mark engaged her in some piece of drollery.

Then the old spirit that she used to display when she performed her little mimicries for Mrs.Rushton's amusement would spring up in her again, and she would take great delight in seeing Mark roll about with laughing, and hearing him declare that she was the jolliest girl in the world.
One Easter time, just two years after Hetty's return to the Hall, when Mark was at home for his holidays, he proposed to Hetty to play a trick on Miss Davis.

Hetty's eyes danced at the thought of a trick of any kind.

She did not have much fun as a rule, and Mark's tricks were always so funny.
"It isn't to be a bad trick, I hope," she said, however.
"Oh! no, not at all.

Only to dress up and pretend to be people from her own part of the world coming to see her and to bring her news.