He tipped up the glass to get the last drops and reached for his jacket. "Been fun catching up, babe. You have my mobile number. Let me know what you decide about tomorrow night."

And he let himself out. It was only as the door shut behind him that I realized what I had slipped into asking: What about college, any boyfriend? as if I were checking the plan for holes; as if I were thinking about doing it.

* * *

Frank's always had a knack for knowing exactly when to leave it. After he'd gone, I sat on the windowsill for a long time, staring out over the rooftops without seeing them. It was only when I got up for another glass of wine that I realized he had left something on my coffee table.

It was the photo of Lexie and her mates in front of Whitethorn House. I stood there, with the wine bottle in one hand and my glass in the other, and thought about turning it face down and leaving it there till Frank gave up and came back for it; thought, for a minute, about sticking it in an ashtray and burning it. Then I picked it up and brought it back to the windowsill with me.

She could have been any age. She had been passing for twenty-six, but I would have believed nineteen, or thirty. There wasn't a mark on her face, not a line or a scar or a chicken-pox blemish. Whatever life had thrown at her before Lexie Madison fell into her lap, it had rolled over her and burned off like mist, left her untouched and pristine, sealed without a crack. I looked older than her: Operation Vestal gave me my first lines around my eyes, and shadows that don't go away with a good night's sleep. I could practically hear Frank: You lost a shitload of blood and you've been in a coma for days, the eye bags are perfect, don't go using night cream.

At her shoulders the housemates watched me, poised and smiling, long dark coats billowing and Rafe's scarf a flash of crimson. The angle of the shot was a little off-kilter; they had propped the camera on something, used a timer. There was no photographer on the other side telling them to say cheese. Those smiles were private things, just for one another, for their someday selves looking back, for me.

And behind them, almost filling the shot, Whitethorn House. It was a simple house: a wide gray Georgian, three stories, with the sash windows getting smaller as they went up, to give the illusion of even more height. The door was deep blue, paint peeling away in big patches; a flight of stone steps led up to it on either side. Three neat rows of chimney pots, thick drifts of ivy sweeping up the walls almost to the roof. The door had fluted columns and a peacock's-tail fanlight, but apart from that there was no decoration; just the house.