"About her. About Nanny."

"Why?"

"I—I don't know."

"You mean we're going to have to repair her again? We just got through fixing her. What is it this time? If those kids didn't get her to—"

"It's not that." "What, then?"

For a long time his wife did not answer. Abruptly she got up from the table and walked across the room to the stairs. She peered up, staring into the darkness. Tom watched her, puzzled.

"What's the matter?"

"I want to be sure she can't hear us."

"She? Nanny?"

Mary came toward him. "Tom, I woke up last night again. Because of the sounds. I heard them again, the same sounds, the sounds I heard before. And you told me it didn't mean anything!"

Tom gestured. "It doesn't. What does it mean?"

"I don't know. That's what worries me. But after we're all asleep she comes downstairs. She leaves their room. She slips down the stairs as quietly as she can, as soon as she's sure we're all asleep."

"But why?"

"I don't know! Last night I heard her going down, slithering down the stairs, as quiet as a mouse. I heard her moving around down here. And then-"

"Then what?"

"Tom, then I heard her go out the back door. Out, outside the house. She went into the back yard. That was all I heard for awhile."

Tom rubbed his jaw. "Go on."

"I listened. I sat up in bed. You were asleep, of course. Sound asleep. No use trying to wake you. I got up and went to the window. I lifted the shade and looked out. She was out there, out in the back yard."

"What was she doing?"

"I don't know." Mary Fields's face was lined with worry. "I don't know! What in the world would a Nanny be doing outside at night, in the back yard?"