John rattled the handle of Mrs. Inglethorp’s door violently, but with no effect. It was obviously locked or bolted on the inside. The whole household was aroused by now. The most alarming sounds were audible from the interior of the room. Clearly something must be done.

“Try going through Mr. Inglethorp’s room, sir,” cried Dorcas. “Oh, the poor mistress!”

Suddenly I realized that Alfred Inglethorp was not with us—that he alone had given no sign of his presence. John opened the door of his room. It was pitch dark, but Lawrence was following with the candle, and by its feeble light we saw that the bed had not been slept in, and that there was no sign of the room having been occupied.

We went straight to the connecting door. That, too, was locked or bolted on the inside. What was to be done?

“Oh, dear, sir,” cried Dorcas, wringing her hands, “what ever shall we do?”

“We must try and break the door in, I suppose. It’ll be a tough job, though. Here, let one of the maids go down and wake Baily and tell him to go for Dr. Wilkins at once. Now then, we’ll have a try at the door. Half a moment, though, isn’t there a door into Miss Cynthia’s rooms?”

“Yes, sir, but that’s always bolted. It’s never been undone.”

“Well, we might just see.”

He ran rapidly down the corridor to Cynthia’s room. Mary Cavendish was there, shaking the girl—who must have been an unusually sound sleeper—and trying to wake her.

In a moment or two he was back.