Dick smiled on hearing that. He believed that, if there was no stronger argument against the venture, his case was already as good as won. And, having thought it all out, he now proceeded to knock away the props from under the structure founded by his father. "Please look back, father, to your own boyhood days," he said, soberly. "How many times have you sat there, and told us of how you and Uncle Sandy started out by yourselves on the trail of that young Iroquois chief who carried Aunt Kate away. Yes, you followed him clear to the Great Lakes, to the country that was teeming with enemies. And, in spite of every peril, you and my uncle, with only the help of that old trapper Pat O'Mara, since gone to the Happy Hunting Grounds, and the friendly Indian, Blue Jacket, did rescue Aunt Kate, and even saved the life of Pontiac, who afterwards gave you the magic wampum belt that has kept us from harm all these years. Father, what I am saying is all true, isn't it?" "Yes, yes, every word of it, my son; but, then, the conditions were different at that time," replied the other, hastily. "Our sister had been carried off, my father was far away on the road to Virginia on important business, and there was no one else to go in search of Kate, so brother Sandy and myself _had_ to start out." "Ah! yes, but you went willingly, eagerly, I know, father, just as we feel like doing now," the boy went on. "But the life and happiness of our only sister was at stake, Dick," the father said, and yet in a half hesitating way, as though the argument of the boy was already beginning to have its effect. "Well, the future happiness of _three_ families is at stake now, father. And if in those days you and Uncle Sandy could face the perils of the wilderness, and win out, why should not Roger and I do the same now? All we would have to do would be to follow up the course of the river, week after week, until we caught the expedition; and then keep on with them until Jasper Williams joined them, as he expects to do by the time they reach the Mandan country. After that, having secured his signature to the paper, we could bring it back to you. Why, what could be easier than that? And think of all it means to us, father!" "Yes, yes, I understand, Dick, and Heaven knows I feel like giving my consent. But it is no light matter, to be settled off-hand in a minute. I have your mother's feelings to consider. She would be loath to see you leave us, and plunge into that unknown country that lies toward the setting sun." "But, father, I have heard you say many times that you often had a longing yourself to go there, and if you were not the head of a family the temptation might have been more than you could stand. Yes, and Uncle Sandy echoed your words, and looked forlorn for a whole day, as though he had to light with the desire to once more become a pioneer, and explore new countries."