About her lips was a twitching that meant a struggle to hide a pleased smile.
"I've no objection to Susie's having boys of her own age come to see her," continued Mrs.Warham in the same precise, restrained manner.

"But Sam is too old." "Now, mother----" Mrs.Warham met his eyes steadily.

"I must protect my sister's child, George," she said.

At last she had found what she felt was a just reason for keeping Sam away from Susan, so her tone was honest and strong.
Warham lowered his gaze.

He understood.