In each room he kept a 12-inch, aluminium-cased Maglite torch.
Although these torches had never been used, he changed their batteries on the first Monday of every month, in addition to which he kept one pack of spares per torch secreted in each room. This unopened pack too was replaced, unopened, every six months. He sometimes woke, having dreamed of a power cut, reaching for the cool metal tube beneath his pillow. Sometimes he slept cupping a Maglite like a teddy bear.
At the foot of the bed he left folded a pile of emergency clothing: a sweater, jeans, slip-on trainers. This was in case he was required to dress and be gone from the flat in a hurry - if the towel in the bathroom should fall, say, or the wardrobe door should creak open. For the same reason he left his keys hanging inside the front-door lock.
Gradually, he'd learned to sleep with softer, indirect lighting which made the possibility of a single blown bulb less catastrophic.
There was a standard lamp in each corner of the bedroom, banishing troubling shadows, and a desktop lamp on the bedside table -- to reach for, should the four standard lamps for any reason blow simultaneously.
He'd
left the main light fitting empty because to accidentally switch on the overhead light, then to correct himself and switch it off again, would make the room appear, momentarily, to be a little darker - even with all four standard lamps on. No degree of darkness was permissible.
He'd experimented with an eye-mask, but it had proved impractical; if Nathan heard a noise -- a click or a creak or a sigh -- it was necessary to fumble inefficiently with the mask's edges and flip the whole thing inside out on his forehead. Instead, he slept on his back with a light pillow placed over his eyes.
In December the dawn was late and the night was long.
Although Christmas was Hermes' busiest retail period, there wasn't much for Nathan and his head office colleagues to do; it was down to the boys in the front line - which is how the field sales reps were described when business was brisk. As the month waxed, then waned, he could do little more than keep an eye on sales and stock levels, measuring their failure against performance targets.
As Christmas Day approached and the possibility of a performance-related bonus once more evaporated, head office slipped into languor. The silent resentment wasn't helped by the seasonal round of obligatory departmental lunches, nor the Christmas party.
On Christmas Eve, Nathan worked as late as he could -- it was always possible to find something to do, even if it was filing or clearing out old paperwork. At 3.30, he wandered twice round the building, looking for somebody to have a drink with. But his colleagues were all gone; one by one, they'd bid cheery seasonal goodbyes and bundled themselves into overcoats, picking up their briefcases and handbags.
On the way home, Nathan stopped off to buy some food. Then he parked his car behind the nursery and approached home via the rear entrance. The nursery was in darkness; the children would soon be tucked up, enduring their own excited sleeplessness at the thought of a nocturnal visitation. But the darkness in the nursery didn't frighten Nathan. The walls were lined with painty splodges on cheap sugar paper. It wasn't conceivable that something wicked lurked in there.
But now he noticed the flats on the first floor were in darkness -- and so was the attic flat that abutted his. He looked at his watch, as if it might suddenly have become three o'clock in the morning.
Frowning, half embarrassed, he walked to the front of the building to see that, except for his own flat - which he kept illuminated even in his absence, in case the uninhabited darkness should act as an invitation -- there were no lights on. Not even in Flat A, on the first floor - where steadfast, boring Wendy and Dave lived. In an act of what felt to Nathan like calculated malice, they'd turned off the winking Christmas tree lights.
It hadn't occurred to Nathan that all of his neighbours might be away for the holiday. It hadn't happened before. The thought of all those empty rooms - of all that darkness, below him as he slept -- dried his mouth and caused his scrotum to shrivel up.
His key rasped too loud in the latch. Stepping into the hallway, every movement seemed to echo. Having banged the timer switch firmly with the heel of his hand, he made it up the first two flights of stairs.
Then he stopped.
He hit the timer switch again and, still clutching his shopping, he turned and ran back downstairs and out the front door.
Eventually, he found a city-centre hotel that was not fully booked.
The room was not cheap, and Nathan was not sufficiently composed to negotiate himself a last-minute best-price deal.
He returned to his flat in the drizzly light of Christmas morning, to pick up a few things: some clothes, some toiletries, a book, and some magazines for when he lost interest in it. He ate a room-service Christmas dinner while watching a repeat of Only Fools and Horses. He spent Christmas evening in the bar, defiantly reading and drinking.
He didn't know how drunk he was until he stood to retire. The walls performed a trick of perspective, retreating from him, and the barmen looked wicked and malicious.
But New Year's Eve, at least, was tolerable. He watched television and, because the hotel was in the city centre, close to the renovated docklands, he could hear the cars hooting their horns and the girls screaming and laughing and groups repeating one verse of 'Auld Lang Syne', over and over again, and still not getting it right. He could watch it on television too: he could watch a celebrity count in another year, and that was good. That put another year between him and it.
January kicked off with a cold snap. Winds blew in unchecked from the Russian steppes. England descended into bedlam, the way it always did when faced with weather that to whatever modest degree actually resembled winter.
So he had to sit out January, too - because nobody went househunting when frost was hard-baked into the ground, making soil like hardwood and concrete brittle like seaside rock. Nobody in England, anyway.
It was not until February that he began to compile a list of local estate agents.
He made the calls from work, during his lunch hour. If the call should be traced, he need only claim to be househunting. In case this should ever be checked out (he well remembered Detective Holloway's cordial malice), he went to see his bank's mortgage adviser, who agreed on the spot to a mortgage in principle.
There were many more local estate agents than Nathan had anticipated.
A single, large advert in the Yellow Pages might cover half a dozen local branches. Because of this, and because he didn't always get a lunch break, it was nearly three weeks before he called Morris Michael estate agents and said, 'Hi, can I speak to Holly Fox please?'
By now, he'd repeated this sentence so often that, somewhere along the line, it had lost its meaning. So the reply "I'm afraid she's out on a viewing right now, may I take a message - was followed by a long silence, during which Nathan's salesman's throat tightened and let him down. He slammed the receiver into its cradle and hurried to the lavatory.
He fumbled at his belt and suffered a protracted bout of diarrhoea.
Then he went to the car park behind the office and sat in his car, listening to loud music. He smoked seven cigarettes.
He watched motorcycle couriers with packages to deliver, and colleagues who'd nipped out for a smoke (there was a forlorn, stained patch of concrete designated for smokers: contrived to be as uninviting as possible, it deterred nobody). He turned down the music and pretended, ineptly, to be speaking into a mobile phone.
Back in his tiny, glass-fronted office, he wrote the estate agent's number on a Post-it note, and returned the Yellow Pages to Angela's desk.