--< TO CARIBOO AND BACK }®- Then he marched out towards the prancing, yelling Indians; no weapon of any kind in his hand but just the old white flag, with the emblem in the middle of it which had puzzled Betty. He waved it about in a careless, casual fashion as he approached the most highly decorated Indian, evidently the chief. Jim knew no more of the flag than did Betty, having never seen it before, but the professor who had made a study of the history of the great Northwest and was collecting data for a book, recognized instantly the standard of the Hudson’s Bay Company. He watched intently the result of Bill’s maneuver. They were not inside the domain of the Hudson’s Bay Com- pany yet, but surely these Sioux Indians knew that flag and knew the unwritten rule of their tribes: that the Big Company’s flag must be respected and that all who travelled under it were safe from attack. The chief watched Bill as he slowly came nearer, still waving the flag. Not a word was spoken. But the warrior suddenly swung his horse around and with a beckoning gesture summoned some of his comrades to a con- ference. At last the chief held his hand aloft [62]