Chapter 19 "TELL ME THAT YOU LOVE ME!"IT was ten o'clock that morning before Bull, Texas Pete and Shorty picked up Colby's trail and by that time the man and his unwilling companion were a good four hours ahead of them. On tired horses, through the heat of a blazing Arizona day, it seemed hopeless to expect to overhaul their quarry before night had fallen and by that time Colby would have crossed the border. Not however that that meant much to the three who pursued him, to whom international boundary lines were of no more practical import than parallels of latitude or isothermal lines. Before noon they were obliged to stop and rest their horses at a water hole that afforded a brackish but refreshing drink for the three jaded animals. In the mud at the border they saw the fresh