Murdoch pointed to the wooden case, which stood on a shelf a few feet from him.

"It was that," he answered.

"That!" he repeated. "What! You're at work at it again, are you?"

"Yes."

"Well, look sharp after it, that's all. There's a grudge bore again it."

"I know that," Murdoch answered, "to my cost. I brought it here because I thought it would be safer."

"Aye, it'll be safer. Take my advice and keep it close, and work at it at nights, when th' place is quiet. There's a key as'll let you in." And he flung a key down upon the table.

Murdoch picked it up mechanically. He felt as if he could scarcely be awake. It seemed as if the man must have brought his purpose into the room with him, having thought it over beforehand. His manner by no means disarmed the suspicion.

"It is the favor I should have asked, if I had thought——"

Haworth left his chair.