Colin shook his head. "It's not money we want, lady," he said, "it's tea." He pulled Nancy forward into the light. "By the way, let me introduce Miss Nancy Seymour. Nancy--Mary; Mary--Nancy." "Oh, I'm so sorry. Please forgive me. I thought you were alone." She pressed Nancy's hand in a friendly welcome, and then, stepping back, shepherded them into the hall. "Take Miss Seymour upstairs, Colin," she said. "You'll find Mark in the study. He's just finished work. You must excuse my deserting you for a moment. It's Martha Jane's day out, so I'm getting tea." "Can I help?" inquired Nancy. She shook her head with another smile. "Everything's ready," she answered. "You go along with Colin, and I'll be up in a minute. I've only got to fetch the crumpets." She disappeared in the direction of the back regions, and having deposited his hat and coat on the hall table, Colin led the way upstairs. As they reached the first landing a door on the right opened, and Mark himself appeared on the threshold. He had a large cherry-wood pipe in his mouth, and he had discarded his frock coat in favour of a Norfolk jacket. "Hullo, Colin!" he exclaimed. "I thought I heard your musical voice. Why the devil----" He stopped short as he suddenly caught sight of Nancy. "You shouldn't swear in front of ladies," said Colin reprovingly. "It's not done in the best medical circles." Mark came forward with an embarrassed air. "I say, please excuse me," he stammered. "I didn't see there was any one else there." "It's all right," said Nancy, laughing. "I've heard the expression before--several times." Colin looked at them both with mischievous amusement. "Hadn't you better introduce us?" suggested Mark. "It would be more useful than standing there grinning like a Cheshire cat." "I didn't think it was necessary," said Colin. "Surely you've guessed that you're talking to the angel?" Mark stared at him in bewilderment. "Talking to whom?" he inquired. "The angel," repeated Colin. "You asked me to find you an angel, and here she is!" A sudden light seemed to break in upon their host's intelligence. "By Jove!" he exclaimed. "You don't say so! Come along into the study." He ushered them both into a snug, comfortably furnished room, lined all round with books, where a table was set out for tea and a bright fire was burning in the grate. "Now, Colin," he demanded, "were you pulling my leg, or is this really a fact?" "Of course it's a fact," said Colin, "and a very nice one too." "I can see that for myself," retorted Mark. He turned to Nancy and pushed forward a chair. "Do sit down," he added. "You must forgive my being rather stupid, but I really thought Colin was joking. You see, I only mentioned the matter to him a few hours ago." "It doesn't take me long to do a little job like that," said Colin, "not when I once start it."