"Maybe he's got something in his head just like Mr. David," Betty suggested.

"Maybe I have, girl," the captain laughed. "But I'm afraid the thing that I've got won't make as much money as his. Where is Mr. David now?"

"He's with that artist over there, watching him sketch this house. He likes the man, for he talks to him so much about the falls. I don't like him; his face frightens me."

The captain made no reply to these words but gazed meditatively out over the fields long after Mrs. Peterson and Betty had left him. He was trying to piece together a number of fragmentary incidents which were revolving in his mind, and to ascertain how they were related.

"I'm sure 'twas on that trip," he muttered, "But darn it all, why can't I remember what he said. He was always talking and boasting about one thing and another. Hello, by jingo, I've got it!" and the captain gave such a whoop that both Mrs. Peterson and Betty came running from the kitchen to see what was the matter.

"It's nothing," the captain growled, disgusted with himself for attracting attention when he wanted to be alone, "I was just thinking, that's all. Can't a man whoop when he wants to without everybody rushing around him like mad?"

"It all depends on what kind of a whoop it is, Robert," his wife replied. "We couldn't tell whether you had gone out of your mind or had fallen off the verandah."

"It's that thing in his brain which did it, Mrs. Peterson," Betty explained. "Mr. David acted queer sometimes, though he never hollered out. It must be something great, Captain," she added, "which made you yelp like that."

"It certainly was, girl," and the captain smiled. "I feel better now, though, so you women needn't worry about me."

The next morning David told Betty that he had made up his mind to visit the falls. He said that he wished to see for himself the wonderful changes which had been made there. Betty was delighted and at once set to work to prepare the luncheon they were to take with them.