The gentlemen did not stay out for quite half an hour. Hugh peeping from the window announced that he saw them walking up and down, talking. They nodded up to him, and they came in a few minutes afterwards. Lucy served them with cups of tea, and then all again went merrily till it was time for Lucy to take Hugh off to bed. She did not require to apologise to these friends for leaving them together while she discharged her happy maternal duty. Mr. Somerset stood on the middle of the rug with his back to the fire. Miss Latimer settled herself in the easy-chair to resume the knitting which she had thrown down during the games. “Miss Latimer,” said Mr. Somerset rather abruptly, “I don’t think you are a nervous woman.” The old lady laughed, deftly shifting her needles. “I don’t think so,” she answered. “Because if we are to believe what Clementina says, some evil attention is being directed to this house, which can have no other aim but to annoy and terrify, perhaps with hope of robbery at last,” he explained. Miss Latimer was all interest. “The servant says,” pursued Mr. Somerset, “that every morning, early, for more than a week past there have been heavy blows on the area door. They have always been struck while she was out of sight in the back kitchen. She has hastened to respond to them, but by the time she reached the door nobody was there. She says that for the first day or two, she thought that whoever had knocked must have hurried away, though she could not understand how they could get up the area steps so quickly. Afterwards she says she lingered longer in the front kitchen, so as to be there when the knocks came. But they never came while she was there—only at the moment when she turned her back. Next she ran to the window so quickly that she is sure there was no time for anybody to get away. Yet nobody was there.” “Ran to the window!” echoed Miss Latimer. “Why didn’t she go to the door?” “She says she was frightened,” answered Mr. Somerset. “Does the window command every corner of the area?” asked the old lady. “Possibly some mischievous boy gave the knock and then stood back against the wall.” “That’s what I said,” remarked Tom Black, “but Clementina made me go down into the kitchen and put my head where she said she had put hers, pressed against the window, and certainly nobody—not even a cat—could have been in the area without my seeing them.” “Why didn’t Clementina tell us about this before?” asked Miss Latimer. “Why did she keep it back to tell us to-day?” “She says she didn’t want to worry her mistress,” said Tom. “But after hearing what has gone wrong at Mr. Marvel’s house, and seeing the policemen come here making inquiries, she thought it might be best for some of us to know it at once. So when she saw me standing on the staircase, she took the opportunity of calling me downstairs and telling me the whole thing.”