“Curtain’s up, miss,” he said and disappeared again.

“Oh dear, oh dear,” she cried, “how the time flies. Can’t you come and talk to me after the show?”

I smiled at her not unkindly.

“By ten-fifteen,” I said, “I shall be in my bedroom.”

“But what am I to do?” she said. “I’ve begun to lean on you. You aren’t going to leave me here wallowing?”

I stared at her.

“Wallowing in what?” I asked.

“Why, in the darkness,” she said, “killing all those people.”

I took her hands again.

“My dear Mary,” I said, “it is in order to remove you that I am here.”