“It’s open now, then,” said Jones. “I only found it out by accident. It looked shut all right when I passed it twice before, but just now when I came by I could see a streak of light, and I pushed it and it flew back wide open, so I found my way upstairs and woke you. You’d better come down.”

Harry was out after the policeman in a minute, and I got up and dressed, knowing something must be wrong, for I’d seen Harry bolt up that door with my own eyes.

It was about five in the morning, and just getting daylight. I went down all of a tremble, and my heart beating loud enough to be heard all over the house. I found Harry and the policeman examining the door.

“It’s been done from the inside,” said Harry; “that’s certain. What can it mean?”

“Who’s in the house?” said the policeman.

“Only the servants and ourselves and the gentleman who’s been staying here for a week,” I said.

“Go and see if the servants are in bed, please, ma’am,” said Jones.

I went and knocked at their doors, and they thought they were all oversleeping themselves, and late, and jumped up directly I knocked.

“Well,” said the policeman, when I told him, “you’d better see if that gentleman’s in the house still.”

“Oh, nonsense!” I said; “I can’t go and disturb him at this hour. Whatever would he think? Besides, it mightn’t be wise to let him know about this. It isn’t a thing to do the house good.”