Ambrose suspected what was coming. But humming with happiness like a top as he was, he could not feel greatly concerned.

Still in the same calm, polite voice Gaviller said:

"I confess I was astonished at your assurance in coming to my house."

This was a frank declaration of war. Ambrose, steeling himself, replied warily: "I did not come on business."

"What did you come for?"

Ambrose did not feel obliged to be as frank with father as with daughter. "I am merely looking at the country."

"Well, now that you have seen Fort Enterprise," said Gaviller dryly, "you may go on or go back. I do not care so long as you do not linger."

Ambrose frowned. "If you were a younger man—" he began.

"You need not consider my age," said Gaviller.

Ambrose measured his man. He had to confess he had good pluck. The idea of a set-to with Colina's father was unthinkable. There was nothing for him to do but swallow the affront. He bethought himself of using a little guile.