There was excitement in her eyes.

The rush of the stream had taken her; an impulse for the moment carried her away.
"I repeated that joke afterwards," she said quickly, "the same evening to shock Mr.Arthur." The moment she had said it, came regret.

It was showing him too plainly the impression that he had left upon her.

But he seemed not to notice it.
"Was he shocked ?" he asked.
"Yes--terribly." She looked at her watch.

That moment's regret had brought her to her senses.