Papa _pays_ him.

Then how comes he to care more about my happiness than papa does--and say so ?" "Why, you begged him to intercede." "Yes," said Mary, "but not to threaten papa; not to say, 'If you are unkind to Mary, our compact is broken.'" Then she pondered awhile; then she turned to Walter, and said: "What sort of compact is that?
A compact between a father and another gentleman that a father shall not be unkind to his own daughter?
Did you ever hear of such a thing ?" "I can't say I ever did." "Did you ever hear tell of such a thing ?" "Well, now you put it to me, I don't think I ever did." "And yet you could run off about money.

What's money! This compact is a great mystery.

It's my business from this hour to fathom that mystery.
Please let me think." Mary's face now began to show great power and intensity; her eyes seemed to veil themselves, and to turn down their glances inward.
Walter was struck with the intensity of that fair brow, those remarkable eyes, and that beautiful face; they seemed now to be all strung up to concert pitch.

He kept silent and looked at his wife with a certain reverence, for to tell the truth she had something of the Pythian priestess about her, when she concentrated her whole mind on any one thing in this remarkable manner.