He seemed to know where he was going-and it might quite easily be the last place on earth in which she would wish to find herself. He sounded confident, and he whistled melodiously. It was, of course, his confidence which was the lure. He had a stick in his hand, and he went along at a cheerful pace, now tapping with it on the pavement, now rattling it with noisy gusto along the line of a stone balustrade. And all the time he whistled. When he had finished with “ Loch Lomond ” he did tricky things with “The Bluebells of Scotland,” and then rather let himself go on “The Road to the Isles.” If he hadn’t made so much noise he might have heard her. Bye and bye she became more confident and came up as close as she dared. He seemed to know where he was going, for he turned twice-once to the left, and once, after crossing the road, to the right.

After a little while she began to make a plan. He mustn’t know that she had been following him. He mustn’t connect her in any way with the house or with the street, which were now at quite a safe distance behind them. But if she could pass him in the fog, get a little way ahead, and then turn and come back, it would look like a perfectly chance encounter, and she could ask him whether he knew where they were. The more she thought about this plan, the more she liked it. Curiously enough, she had no fear of speaking to him. He might be going to engage in high-ranking crime, but she felt perfectly sure that he wouldn’t snatch her bag or hit her over the head in the street. She passed him, running lightly, whilst he was giving a spirited rendering of “Bonnie Dundee,” and was just going to slow up and turn, when she ran slap into someone else. Her outstretched hands touched a rough coat, and a moment later her face was hard against it and her mouth full of muffler. By the time she had gasped and spat it out a man’s voice was saying over the top of her head, “I say, I am awfully sorry! Are you hurt?” and “Bonnie Dundee” was breaking off. The voice was a nice one. She gave the arm which was holding her a frantic pinch, stood on tiptoe to get as near as possible to where she thought there might be an ear, and whispered,