"That's something to be thankful for, my lord," said the Inspector, with an approving shake of the head. "Quite the proper thing to do. There wouldn't be half the burglaries, if the gentry didn't leave their jewels about in the way they do. But there might have been money?" "Oh, yes, there might," said Heyton. The Inspector walked round the room cautiously, and presently went to the outer door. "Is this locked, my lord?" "I don't know," said Heyton; and, as if he had forgotten the Inspector's injunction, he tried the handle of the door before the Inspector could stop him. "It's locked," said Heyton. "Tut, tut!" said the Inspector to himself, as if he were much annoyed by something. "Come on," said Heyton. "I'll show you the window I found open." He was consumed by a feverish desire to get the Inspector out of the room. They went down to the lower hall, the white-faced servants staring at them from coigns of vantage; and the Inspector glanced swiftly at the window and then at the hall. "That's where they got in," he said. "Nothing easier. There is no door, I suppose, between the Marquess's room and the window here?" "No," replied Heyton, moistening his lips as he stood behind the Inspector. "And you are sure this window was open when you went out this morning, my lord? What time was that, by the way?" "A little after six," replied Heyton. "It was deuced hot; I woke and had a fancy for a swim. There was no one about, and I opened the door, this door, for myself." "Oh, it's plain enough," said the Inspector, nodding once or twice. "It's quite easy for them to slip this hasp back with an ordinary knife. The rest isn't difficult to guess. They must have made some noise while they were breaking into the safe; well, not 'breaking into' it, for they must have opened it with a key, because there wasn't even the mark of an ordinary chisel on the safe. You noticed that, my lord, no doubt?" "I--I can't say I did," said Heyton; "I'm a bit upset and confused, you know." "Yes, it was opened with a key," said the Inspector, "and that's the only part of the business that troubles me. That's a good safe, my lord; one of the first-class makers, and it couldn't have been opened with a skeleton key; in fact, with anything but the proper key or a duplicate." "Oh?" said Heyton. "Where did they get it?" The Inspector shook his head. "Of course, that's just the puzzle, my lord. I'm afraid we shall have to leave that to the Scotland Yard man." As he spoke, he took out his whistle and blew sharply on it. A constable came to the door and saluted. "Got your men placed, Brown?" asked the Inspector. "Just put another man on the drive, and give him orders that no man is to enter the lodge gates excepting the detective, when he comes." "What's that for?" asked Heyton, as if the question were inspired by his desire to understand everything that was being done. "I don't want a lot of people tramping over the place," said the Inspector, rather evasively.