Muttering apologies about his wife’s car not starting and having had to take his daughter to a clarinet lesson, the pathologist scurried around the skeleton, giving it a wide berth and a suspicious glare, as if challenging it to declare itself friend or foe.

‘Yes,’ he said to no one in particular. ‘Ah, right.’ Then he turned to Roy and pointed at the skeleton. ‘This is the body?’

Grace had always found Theobald a little peculiar, but never more so than at this moment. ‘Yes,’ he said, somewhat dumbfounded by the question.

‘You’re looking brown, Roy,’ the pathologist remarked, then took a step closer to the skeleton, so close he could have been asking it the question. ‘Been away?’

‘New Orleans,’ Grace replied, levering the top off his own latte and wishing he was still there now. ‘I was at the International Homicide Investigators’ Association Symposium.’

‘How’s the rebuilding going there?’ Theobald asked.

‘Slow.’

‘Still much damage from the flood?’

‘A lot.’

‘Many people playing the clarinet?’

‘The clarinet? Yes. Went to a few concerts. Saw Ellis Marsalis.’

Theobald gave him a rare beam of pleasure. ‘The father!’ he said approvingly. ‘Yes, indeed. You were lucky to hear him!’ Then he turned back to the skeleton. ‘So what do we have?’

Grace brought him up to speed. Then Theobald and Joan Major entered into a debate about whether the body should be removed intact, a lengthy and elaborate process, or taken away in segments. They decided that, because it had been found intact, it would be better to keep it that way.

For a moment, Grace watched the rain teeming steadily in through the broken section of the drain, a short distance away. The individual drops looked like elongated dust motes in the shaft of light. New Orleans, he thought, blowing steam from his coffee and sipping it tentatively, trying to avoid frizzing his tongue on the hot liquid. Cleo had come with him and they’d taken a week’s holiday straight after the conference, staying on, enjoying the city and each other.

It seemed that everything had been much easier between them then, away from Brighton. From Sandy. They just chilled, enjoyed the heat, took a tour around the areas devastated by the flooding that had not yet been restored. They ate gumbo, jambalaya, crab cakes and oysters Rockefeller, drank margaritas, mojitos and Cali-fornian and Oregon wines, and listened to jazz in Snug Harbor and other clubs each night. And Grace fell even more in love with her.

He was proud of the way Cleo coped at the conference. As a beautiful woman who did a very unglamorous job, she was on the receiving end of a fair bit of ribbing, curiosity and some truly appalling chat-up lines from five hundred of the world’s top, toughest and mostly male detectives in party mode. Always, she gave back as good as she got, and she made eyeballs pop out by dressing her five-feet eleven-inch leggy frame in her usual eccentric, sexy way.

‘You asked me about her age last night, Roy,’ the forensic archaeologist said, interrupting his thoughts.

‘Yes?’ Instantly, he was fully focused as he stared at the skull.

Pointing at the jaw, she said, ‘The presence of the wisdom teeth tells us she is over seventeen. There is evidence of some dental work, white fillings – which tend to have been more common during the past two decades, and more expensive. Could be she went to a private dentist, which might narrow it down. And there’s a cap on one maxillary incisor.’ She pointed to a top-left tooth.

Grace’s nerves began jangling. Sandy had chipped a front left tooth on one of their first dates, biting into a fragment of bone in a steak tartare, and had later had it capped.

‘What else?’ he asked.

‘I would say from the general condition and colouring that the teeth indicate her age to be consistent with my estimated range yesterday – somewhere between twenty-five and forty.’ She looked at Frazer Theobald, who gave her a deadpan nod, as if he was sympathetic to her findings but not necessarily in wholehearted agreement.

Then she pointed at the arm. ‘The long bone grows in three parts – two epiphyses and the shaft. The process by which they join together is called epiphyseal fusion and it is usually complete by the mid-thirties. This is not quite complete yet.’ She pointed at the collar bone. ‘The same applies with the clavicle – you can see the fusion line on the medial clavicle. It fuses at around thirty. I should be able to give you a more accurate estimate when we get to the PM room.’

‘So she was about thirty, you are fairly sure?’ Grace said.

‘Yes. And my hunch is not much more than that. Could even be younger.’

Roy remained silent. Sandy was two years younger than him. She had disappeared on his thirtieth birthday, when she was just twenty-eight. The same hair. A capped tooth.

‘Are you OK, Roy?’ Joan Major asked him suddenly.

At first, lost in thought, he heard her voice only as a distant, disembodied echo.

‘Roy? Are you OK?’

He snapped his focus back to her. ‘Yes, yes. Fine, thanks.’

‘You look as if you’ve just seen a ghost.’

Ronnie hurried down West Broadway, crossing Murray Street, Park Place, then Barclay Street. The World Trade Center was right in front of him now, on the far side of Vesey Street, the two silver monoliths rising sheer into the sky. The smells from the fire were much stronger and sheets of curled, burning paper were floating in the air, while debris tumbled down and smashed to the ground.

Through the dense black smoke he could see crimson, as if the tower was bleeding. Then flashes of bright orange. Flames. Jesus, he thought, feeling a terrible dark fear in his gut. This cannot be happening.

People were staggering out of the entrance, looking dazed, staring upwards, men in sharp shirts and ties without jackets, some on their mobiles. For a second he watched an attractive young brunette in a power suit stumbling along with only one shoe on. She suddenly clamped her hands to her head, looking pained, as if a falling object had just struck her, and he saw a trickle of blood run down her cheek.

He hesitated. It didn’t look safe to go any further. But he needed that meeting, needed it so desperately badly. Just have to chance it, he thought. Run like hell. He coughed, the smoke pricking his throat, and stepped off the sidewalk. The kerb was higher than he realized and, as the wheels of his case bumped down, the handle twisted in his hand and his briefcase fell off.

Shit! Don’t do this to me.

Then, just as he ducked down and grabbed the handle of his briefcase, he heard the scream of a jet aircraft.

He looked up again. And could not believe his eyes. A split second later, before he had time to register intelligibly what he was seeing, came an explosion. A metallic thunderclap boom, like two cosmic dustbins colliding. A sound that seemed to echo in his brain and to go on echoing, rumbling around out of control inside his skull until he wanted to stick his fingers in his ears to stop it, to choke it. Then he felt the shockwave. Felt it shuffling every single atom in his body.

A massive ball of orange flames, showering diamanté sparks and black smoke, erupted from near the top of the South Tower. For one fleeting instant he was struck dumb by the sheer beauty of that sight: the contrast of colours – the orange, the black – stark against the rich blue of the sky.

It seemed as if a million, billion feathers were floating in the air around the flames, drifting unhurriedly towards the ground. All in slow motion.

Then the reality slammed into him.

Slabs of wood, glass, chairs, desks, phones, filing cabinets were bouncing, shattering, on the ground in front of him. A police car pulled up, just past him, doors opening before it had even stopped. A mere hundred yards or so to his right, along Vesey Street, what at first looked like a burning flying saucer dropped with a massive clanging sound, smashing a deep crater, then bounced, shedding parts of its covering and innards, spraying out flames. When it finally lay still it continued to burn fiercely.