"Oh, he mustn't trouble to do that," objected the girl hastily. "I'm sure he's frightfully busy, and, after all, it's quite easy just to blow a whistle." Colin laughed. "You can't get out of it," he said. "Still, if you'll tell the Inspector your name and where you live I don't suppose he'll bother you to give evidence unless it's absolutely necessary." "You can count on that, miss," remarked the other reassuringly. "Well, I live just round the corner at No. 46 Jubilee Place," said the girl, "and my name's Seymour--Miss Nancy Seymour." The Inspector committed this information to an official-looking pocketbook, and then held out his hand to Colin. "I shan't forget that you've saved my life, doctor," he said. "I hope that next time you're up in our direction you'll look in and pay us a visit." He paused. "And remember," he added, "that if there's ever any little way in which we can be of use to you, you've only got to let us know. We like to pay our debts at the Yard when we get the opportunity." "I shall remember," said Colin, smiling. "It might come in handy one of these days." He stepped forward as a movement amongst the onlookers heralded the approach of the ambulance, and, after assisting to lift the injured constable inside, came back to where the girl was standing. "Can I see you as far as your house?" he asked. "I don't suppose any of those blackguards are still hanging about, but there's no point in running risks." "Thank you," she said simply. "I should be very grateful if you would." Under a fire of curious glances they pushed their way through the crowd and started off along the pavement in the direction of Jubilee Place. Colin was the first to break the silence. "Where did you spring from?" he asked. "I never saw you until you blew the whistle." "I had just come out to buy a stamp," replied his companion. "I was walking peacefully along to King's Road when I suddenly found myself right in the middle of it." "Well, you've got some pluck," said Colin admiringly. "That Inspector was quite right in what he said. Most girls would have given a shriek and flopped down in the gutter." She coloured again in the same attractive fashion as before. "It wasn't a question of pluck," she objected. "I acted entirely from impulse. If I had had time to think I should probably have done what you say." She stopped short with a little gesture of annoyance. "Oh dear, how stupid I am! I've quite forgotten to buy the stamp after all." "It doesn't matter," said Colin. "I've got one in my pocket I can let you have." They turned up a narrow street with some white buildings on one side of it, and at the door of the second house the girl halted. "This is where I live," she said. "It was awfully kind of you to walk back with me."