"I know how you feel," I said, "and I am counting on you to help me. I have a sort of idea how his death came about. Only the vaguest possible idea," I added hastily, as his eyes widened with interest; "altogether too vague to be put into words. But I can say this much —the mystery, whatever it is, is in the ante-room where the bodies were found, or in the room next to it where the furniture is. Now, I am going to lock up those rooms, and I want you to see that nobody enters them without your knowledge."

"Not very likely that anybody will want to enter them, sir," and
Parks laughed a grim little laugh.

"I am not so sure of that," I dissented, speaking very seriously. "In fact, I am of the opinion that there is somebody who wants to enter those rooms very badly. I don't know who he is, and I don't know what he is after; but I am going to make it your business to keep him out, and to capture him if you catch him trying to get in."

"Trust me for that, sir," said Parks promptly. "What is it you want me to do?"

"I want you to put a cot in the hallway outside the door of the ante-room and sleep there to-night. To-morrow I will decide what further precautions are necessary."

"Very good, sir," said Parks. "I'll get the cot up at once."

"There is one thing more," I went on. "I have given the coroner my personal assurance that none of the servants will leave the house until after the inquest. I suppose I can rely on them?"

"Oh, yes, sir. I'll see they understand how important it is."

"Rogers, especially," I added, looking at him.

"I understand, sir," said Parks, quietly.