The windows of the three apartments occupied by the workmen were not only guarded by strong iron bars, but possessed the additional security of external wire blinds of exceedingly small mesh. Each window admitted plenty of light, and could be raised to allow a free circulation of air, but it was seemingly quite impossible for any active communication to take place with the outside. The three rooms looked out over a small enclosed lawn, which was separated from the park by a brick wall surmounted by iron railings. All the fireplaces had been closed with bricks and mortar. "You will see, sir," said the inspector, when he had called Brett's attention to these details, "that mysterious though the murders were, they were as nothing compared with the disappearance of the diamonds. Every person who came downstairs was most carefully and methodically searched each time he passed the constable on duty at the bottom. It may be admitted that a few small stones could be so secreted as to escape observation, but some of these stones were so large that such a notion is not to be thought of, whilst the size of the great diamond which Mr. Talbot christened the 'Hen's Egg' rendered its transference past the searchers beneath absolutely impossible. There was no humbug about the search, you will understand, Mr. Brett. People had to take their boots off, open their mouths, and hand over their hats, coats, sticks, or umbrellas for inspection. Every part of their clothing was scrutinised, and the contents of their pockets, money, watches, keys, and the rest, thoroughly examined. These were our orders, and they were strictly obeyed, Mr. Talbot himself being the first to insist that the regulation should be carried out rigidly, so far as he was concerned. Why, one day a Cabinet Minister came here to see the diamonds. He was elderly and stout, and did not at all like having to take off his boots, I can assure you, as he nearly got apoplexy whilst lacing them up again." During the inspector's running comments Brett had carefully scrutinised each of the windows. He at once came to the conclusion, by a simple analysis of the possibilities, that by no other means than through the barrier of iron wire had the diamonds passed out of the house; but the most thorough examination failed to reveal any loophole by which this achievement had been accomplished. He opened each of the windows, tested every iron bar, and saw that the fastenings of the external blind were undisturbed, whilst the fine wire mesh showed no irregularities in its hexagonal pattern wherein any defect would at once be visible. "We have done all that long since, sir," said the second police officer, smiling at the obviousness of an amateur's method of inspection, for it happened that he had never met the barrister before, though he had often heard of him.