Catherine seized her hand, looked at her steadily for a moment, and slowly said:

"The woman who would not give both her body and her soul for the Cause of Humanity, if called on to make the sacrifice, is not worthy to live in the big world of which we've dreamed."

Barbara's face flushed and her eyes sparkled.

"You believe this?" she asked, sternly.

"With all my soul," was the fierce answer.

Barbara hesitated a moment, and firmly said:

"Then I'll do it!"