The Cuckoo's Calling

horrible piece here about her birth mother.”
    “OK. Read it out.”
    He slid his mobile back into his pocket. As he bent his large head again over Mrs. Hook’s file, his thoughts seemed to reverberate as though a gong had been struck inside his skull.
    Charlotte was behaving with sinister reasonableness; feigning adult calm. She had taken their endlessly elaborate duel to a new level, never before reached or tested: “Now let’s do it like grown-ups.” Perhaps a knife would plunge between his shoulder blades as he walked through the front door of her flat; perhaps he would walk into the bedroom to discover her corpse, wrists slit, lying in a puddle of congealing blood in front of the fireplace.
    Robin’s voice was like the background drone of a vacuum cleaner. With an effort, he refocused his attention.
    “ ‘…sold the romantic story of her liaison with a young black man to as many tabloid journalists as were prepared to pay. There is nothing romantic, however, about Marlene Higson’s story as it is remembered by her old neighbors.
    “ ‘ “She was turning tricks,” says Vivian Cranfield, who lived in the flat above Higson’s at the time she fell pregnant with Landry. “There were men coming in and out of her place every hour of the day and night. She never knew who that baby’s father was, it could have been any of them. She never wanted the baby. I can still remember her out in the hall, crying, on her own, while her mum was busy with a punter. Tiny little thing in her nappy, hardly walking…someone must have called Social Services, and not before time. Best thing that ever happened to that girl, getting adopted.”
    “ ‘The truth will, no doubt, shock Landry, who has talked at length in the press about her reunion with her long-lost birth mother…’—this was written,” explained Robin, “before Lula died.”
    “Yeah,” said Strike, closing the folder abruptly. “D’ you fancy a walk?”

2
    THE CAMERAS LOOKED LIKE MALEVOLENT shoeboxes atop their pole, each with a single blank, black eye. They pointed in opposite directions, staring the length of Alderbrook Road, which bustled with pedestrians and traffic. Both pavements were crammed with shops, bars and cafés. Double-deckers rumbled up and down bus lanes.
    “This is where Bristow’s Runner was caught on film,” observed Strike, turning his back on Alderbrook Road to look up the much quieter Bellamy Road, which led, lined with tall and palatial houses, into the residential heart of Mayfair. “He passed here twelve minutes after she fell…this’d be the quickest route from Kentigern Gardens. Night buses run here. Best bet to pick up a taxi. Not that that’d be a smart move if you’d just murdered a woman.”
    He buried himself again in an extremely battered A–Z. Strike did not seem worried that anyone might mistake him for a tourist. No doubt, thought Robin, it would not matter if they did, given his size.
    Robin had been asked to do several things, in the course of her brief temping career, that were outside the terms of a secretarial contract, and had therefore been a little unnerved by Strike’s suggestion of a walk. She was pleased, however, to acquit Strike of any flirtatious intent. The long walk to this spot had been conducted in almost total silence, Strike apparently deep in thought, and occasionally consulting his map.
    Upon their arrival in Alderbrook Road, however, he had said:
    “If you spot anything, or you think of anything I haven’t, tell me, won’t you?”
    This was rather thrilling: Robin prided herself on her observational powers; they were one reason she had secretly cherished the childhood ambition that the large man beside her was living. She looked intelligently up and down the street, and tried to visualize what someone might have been up to, on a snowy night, in sub-zero temperatures, at two in the morning.
    “This way,” said Strike, however, before any insights could occur to her, and they walked off, side by side, along Bellamy Road. It curved gently to the left and continued for some sixty houses, which were almost identical, with their glossy black doors, their short railings either side of clean white steps and their topiary-filled tubs. Here and there were marble lions and brass plaques, giving names and professional credentials; chandeliers glinted from upper windows, and one door stood open to reveal a checkerboard floor, oil paintings in gold frames and a Georgian staircase.
    As