Max had been very ambitious. He had not been simply content with doing away with his own plant. He had placed in every one of the neighboring towns agents that he could depend upon. By months of the most careful plotting and arrangement, he had coached them in their part. Oh, it was to be a dramatic piece of frightfulness. The very day was fixed. Two weeks from the time that young Mr. Barker finished photographing the last piece, at ten o'clock at night, there was to be one grand explosion, running along the river for miles, back into the hills north and south--a piece of destruction that would not only rip every wheel apart but shake the valley, tumble down its buildings, set fire upon fire, drive men and women from their homes, murder, destroy. It was the monstrous German imagination for destruction at its highest--a great conception. Again and again young Mr. Barker had to stop in wondering admiration at the perfection of the scheme. "God!" he said, "and to think we have got him!" But now the time had come when he had to have help--the help of Katie Flaherty. He knew he could count on her. He realized nothing would ever quiet the pain in Katie's heart but to get her German, to give blow for blow. And so one day, after records and photographs were complete, after they had been spread before certain high authorities in a near-by city, Katie had another call from her roomer. It was the first time she had seen him in weeks. "And what is it, Mr. Barker? Is something going wrong? Did I forget your towels?" she had greeted him. "Not at all, Mrs. Flaherty," he said cheerfully. "You never forget anything. You are the best landlady I ever had. But there's something on my mind, and I want your help. May I have a talk with you?" And, seated in the kitchen of the rectory, he laid before her the outline of what he had discovered. He showed her the big silver badge that he wore beneath his coat, and told her what he wanted. Briefly, it was her coöperation in arresting Max. She had listened, amazed, unbelieving, and then, as the truth dawned upon her, horrified. And when her help was asked, her whole bitter hatred blazed up in a passion of desire. Here was her chance! She'd get her German. But how were they going to do it? "Do you ever go up to his door of an evening?" he asked her. "Every night at nine o'clock, I rap and give him his pitcher of fresh water, and sometimes, when I have it, a bit of fruit. He has always been such a quiet, gentle soul, playing his piano and singing his songs--I can't believe it's true." "It's true, Mrs. Flaherty," said young Mr. Barker. "What is it you want?"