Frank and I spent the next week developing Lexie Madison Version 3.0. During the day he pumped people for information about her, her routine, her moods, her relationships; then he came over to my flat and spent the night hammering the day's crop into my head. I'd forgotten how good at this he was, how systematic and thorough, and how fast he expected me to keep up. Sunday evening, before we left the squad room, he handed me Lexie's weekly schedule and a sheaf of photocopies of her thesis material. On Monday he had a thick file of her KAs--known associates--complete with photos and voice recordings and background info and smart-arsed commentary, for me to memorize. On Tuesday he brought an aerial map of the Glenskehy area, made me go over every detail till I could draw it from memory, gradually worked his way inwards till we got to floor plans and photos of Whitethorn House. This stuff had taken time to get together. Frank, the fucker, had known long before Sunday night that I was going to say yes.

We watched the phone videos again and again, Frank hitting Pause every few seconds to snap his fingers at some detail: "See that? How her head tilts to the right when she laughs? Show me that angle . . . See the way she looks at Rafe, and there, at Justin? She's flirting with them. Daniel and Abby, she looks at straight on; the two lads, it's sideways and up. Remember that . . . See her with the cigarette? She doesn't tuck it into the right-hand side of her mouth, the way you do. Her hand crosses over, and the smoke goes in on the left. Let's see you do it . . . See that? Justin starts getting all worked up about the mildew, and straightaway there's that little glance between Abby and Lexie, and they start talking about the pretty tiles to take his mind off it. There's an understanding there . . ." I watched those clips so many times that when I finally went to sleep--five in the morning, mostly, Frank sprawled on the sofa in all his clothes--they slid through my dreams, a constant undercurrent, tugging: the brusque cut of Daniel's voice against Justin's light obbligato, the patterns of the wallpaper, the rich tumble of Abby's laugh.