Laurie's thoughts returned to that imaginative youth. He saw him consuming the girl's luncheon, and a new suspicion crossed his mind. Perhaps the whole business was a bit of graft. But his intelligence rejected that suggestion. If this had been the explanation, the boy would not have concluded the episode so briskly. He had got the strange young man where he might have "kept him going" for days and made a good income in the process. As it was, there seemed nothing more to do. And yet--and yet--how the deuce could one let the thing drop like that? If the girl was really in straits-- Thus the subconscious argument went on and on. It worried Laurie. He was not used to such violent mental exercise. Least of all was he in the habit of disturbing himself about the affairs of others. But this affair was different. The girl was so pretty! Also, he had recurrent visions of his sister Barbara in the position of his mysterious neighbor. Barbara might easily have gone through such an experience during last year's test in New York. In that same experiment Laurie himself had learned how slender is the plank that separates one from the abyss that lies beneath the world's workers. He dined alone that night and it was well he did so. His lack of appetite would certainly have attracted the attention of Bangs or any other fellow diner, and Bangs would as certainly have commented upon it. Also, he passed a restless night, troubled by vaguely depressing dreams. The girl was in them, but everything was as hopelessly confused as his daytime mental processes had been. The next morning he deliberately kept away from the mirror until he was fully dressed, but he dressed with a feeling of tenseness and urgency he would have found it difficult to explain. He only knew that to-day he meant to do something definite, something that would settle once for all the question that filled his mind. But what could he do? That little point was still unsettled. Knock at the girl's door, pretend that it was a blunder, and trust to inspiration to discover in the brief encounter if anything was wrong? Or put money in an envelop and push it under her door? If he did that, she would probably give the money to Sam, as she had given him the food. What to do? Laurie proceeded with his toilet, using the dressing-case and carefully avoiding the long mirror. He experienced an odd unwillingness to look into that mirror this morning, based partly on delicacy--he remembered the nightdress--but more on the fear of disappointment. If he saw her, it would be an immense relief. If he didn't, he'd fancy all sorts of things, for now his imagination was running away with him. When he was fully dressed he crossed the room in three strides and stopped before the mirror with a suddenness that checked him half-way in the fourth.