The bedroom on the other side of the parlor had always been occupied by the Carrington lady of the house. Peter’s wife, Grace, had been the last one to use it. Before that, Elaine had slept there, and before that, Peter’s mother, and all his maternal ancestors back to 1848. It was very feminine, with pale peach walls and peach and green draperies, headboard, and bedspread. A love seat and lady chairs near the fireplace made the room look cozy and welcoming. A truly beautiful painting of a garden scene was above the mantel of the fireplace. I knew that soon I would want to put my own stamp on the room because I like more vibrant colors, but it amused me to think that I could have tucked my little studio into it.

Peter had already warned me that he had frequent spells of insomnia, and that when that was happening he would slip over to the other room to read. Since I am sure I will sleep through Gabriel’s horn when it finally sounds, I told him that wasn’t necessary, but whatever made him more comfortable and more likely to sleep was fine with me.

That night we went to sleep in my room, I with sugarplums dancing in my head at the prospect of really beginning my life as Peter’s wife. I don’t know what woke me up during the night, but something did. Peter was gone. Even though I knew he was probably in his room reading, I suddenly felt a tremendous sense of anxiety. I slipped my feet into slippers, pulled on a robe, and padded through the sitting room. His door was closed. I opened it very quietly. It was dark, but there was enough early-morning light flickering around the window shades to see that the room was empty.

I don’t know what made me do it, but I hurried over to the window and looked down. From there the pool was clearly visible. Of course, in February the pool was covered, but Peter was there, kneeling beside it, resting one hand on the edge, and slipping the other hand under the heavy vinyl covering into the water. His whole arm was moving back and forth as if he was either trying to push something into the pool or drag something out of it.

Why? What was he doing? I wondered. Then, as I watched, he stood up, turned, and came slowly back toward the house. A few minutes later he opened the door to the bedroom, went into the bathroom, turned on the light, dried his arm and hand on a towel, and rolled down the sleeve of his pajama top. He then turned out the light, walked back into the bedroom, and stood facing me. It was obvious he was not aware of my presence, and I realized what was happening. Peter was walking in his sleep. A girl in our dormitory in college had been a sleepwalker, and we’d been warned never to wake her suddenly.

As Peter made his way through the sitting room, I followed him silently. He got back into bed in my room. I slipped off my robe, kicked off my slippers, and gently got in beside him. A few minutes later, his arm went around me and his drowsy voice murmured, “Kay.”

“I’m here, dear,” I said.

I could feel his body relax, and soon his even breathing told me that he was asleep. But for the rest of the night I lay awake. Peter was a sleepwalker, I now realized, but how often did that happen? And far more important, why, in that altered state, did he go through the motions of trying to push something into the pool or pull something from it?

Something-or someone?

Nicholas Greco drove through Cresskill, a town near Englewood, watching for street signs and reminding himself once again that it was time to get a navigation system for his car. Frances always tells me that for someone who is so good at solving crimes, I can’t make it to the grocery store without getting lost, he thought. She’s right.

Nice town, he thought as, following the directions he had taken from MapQuest, he turned right on County Road. He was on his way to interview Vincent Slater, the man who had been called “indispensable” by Peter Carrington’s father.

Greco had done exhaustive research on Slater before he’d requested the meeting, but there hadn’t been much of interest to learn from it. Slater was now fifty-four years old, a bachelor, still living in the childhood home he had bought from his parents when they moved to Florida. He had commuted to a local college. His first and only job was with Carrington Enterprises. Within a couple years of his employment he had gained the attention of Peter’s father and had become a kind of aide-de-camp to him. After Peter’s mother died, Slater became a combination of trusted employee and surrogate parent for Peter. A dozen years older than Peter, during the Carrington heir’s adolescent years Slater would drive him to Choate, his prep school in Connecticut, and visit him there regularly, stay in the mansion with him on vacations, and take him skiing and sailing during holidays.

Slater’s background was interesting, but it was the fact that he had been a guest at the party the night Susan Althorp disappeared that was of primary interest to Greco. He had grudgingly consented to the interview but insisted that it be conducted at his home. He doesn’t want any part of me at the mansion, Greco thought. He should know that I’ve already been there, at least to the guesthouse to talk to the Barrs.

He watched the house numbers and stopped in front of Slater’s house, which turned out to be a split-level, the kind so popular in the fifties. When he rang the bell, Slater answered the door instantly. I wonder if he was standing behind it, Greco thought. And without having laid eyes on him before, why do I think he’s that kind of guy? “Very good of you to see me, Mr. Slater,” he said mildly, reaching out his hand.

Slater ignored it. “Come in,” he said curtly.

I could make my way around here blindfolded, Greco thought. Kitchen straight ahead at the end of the foyer. Living room to the right of the entrance, opening into a small dining room. Three bedrooms upstairs. The family room a half level below the kitchen. Greco knew because he had been brought up in the mirror image of this house in Hempstead, Long Island.

It was immediately obvious that Slater’s taste ran to the minimal. The beige walls were dull above the brown carpet. Greco followed Slater into the sparsely furnished living room. A modernistic couch and chairs were arranged in a seating group around a wide glass coffee table with steel legs.

Nothing warm and fuzzy about this place or this guy, Greco thought as he sat down in the chair Slater had indicated.

It was too low for his taste. A subtle way of putting me at a disadvantage, he thought.

Before he could make his usual remarks thanking Slater for agreeing to meet him, Slater said, “Mr. Greco, I know why you are here. You are investigating the disappearance of Susan Althorp at the request of her mother. That is praiseworthy, except for one serious problem-your mandate is to somehow prove that Peter Carrington is criminally responsible for Susan’s disappearance.”

“My mandate is to find out what happened to Susan, and if possible to give her mother peace,” Greco said. “I recognize that because he was the last known person to see her before her disappearance, Peter Carrington has lived under a cloud of suspicion for twenty-two years. As his friend and assistant, I would think you would be interested in dispelling that cloud if it were at all possible to do so.”

“That obviously goes without saying.”

“Then help me. What is your recollection of the events of that evening?”

“I am certain that by now you know exactly what testimony I gave when the investigation was opened initially. I was a guest at the dinner. It was a very pleasant affair. Susan arrived with her parents.”

“She arrived with them, but Peter drove her home.”

“Yes.”

“What time did you leave the party?”

“As you surely know, I stayed over that night. For years I have had my own room in the mansion. Ninety-nine percent of the time I come home to this house, but that night I decided to stay over, as did a number of other guests. Elaine, Peter’s stepmother, was planning a ten A.M. brunch, and it was easier to stay there than to drive back and forth.”