He pressed the bell. Far away in a back room he heard it ringing, and then at once —it must have been at once because he hadn’t even had time to take his finger from the bell button—the door swung open and a woman was standing there.
Normally you ring the bell and you have at least a half-minute’s wait before the door opens. But this dame was like a jack-in-the-box. He pressed the bell—and out she popped! It made him jump.