I only ask you to think it over to-night and choose between what you call loyalty to the Brotherhood, and your plain duty to your family--Good-night." Hawkins possessed, in a remarkable degree, the rare faculty of knowing how and when to let go. When Cowels had made the foregoing facts known to his wife, she was greatly surprised that he would entertain such a proposition for the smallest fraction of a second, for she had always regarded him as the soul of honor, and wholly unselfish. Now each pondered in silence over the proposition. From her point of view it was a choice between the Brotherhood and her home. Between temporary disgrace for her husband, and hunger for her children, and she was not long in making up her mind. The baby had been without milk that day. It had gone to bed hungry for the first time in its life, and the thought of it made her desperate. To Cowels's way of reasoning it was simply a question of choice between the position of master of the Brotherhood and master-mechanic. Which was nearest, and which would last longest and pay best? These were the points he was considering, and he chose what appeared to him to be the surest and quickest way. To be sure, he suffered not a little at the thought of deserting his comrades, but his personal ambition and selfishness helped him to determine to report on the following morning, and to go out with the fast express behind him on the following night. He tried not to think of the Brotherhood, and to fashion to himself the glory of success, of fast runs with Blackwings, and future promotion. CHAPTER TENTH The night winds moaned among the empty freight cars. The arc lamps hummed and sputtered, making the flying frost look like diamond dust dropping from the grinding stars. Out of a shadowy alley a bent man crept, crouching under the snow-hung eaves. Far down the track, at a crossing, the man saw the flash of a helmet and the glint of brass buttons, and dodged among the cars. The man had committed no crime against the law, but he was willing to, and so avoided the silent guardian of the peace, pacing his beat. Beyond the track he came to the street door of a two-story building, struck a match, read the number on the transom, and entered the hall. At the top of the first flight of stairs a door stood open. Beneath a gas jet in the open room Dan Moran sat reading a book. He had heard the unsteady footsteps on the stair, but had not allowed them to disturb him. Now the prowler paused, steadied himself against the door-jamb, coughed, hiccoughed, hello'd in a whisper, and Moran looked up. "Well, Greene," said Dan, "what brings you abroad on a night like this?" "Business!" was the half-whispered reply, "Business, ol' man."