'You look as if you enjoyed that,' the frier's wife said, wiping down the table next to him. He had enjoyed it. All the more so since Patience wouldn't be smelling his breath this evening, checking for cholesterol and sodium and starch…

He looked at the list of delights printed above the counter. Red, white and black puddings, haggis, smoked sausage, sausage in batter, steak pie, mince pie, chicken… with pickled onions or pickled eggs on the side. Rebus couldn't resist. He bought another bag of chips to eat while he drove…

Today was Tuesday. Five days since Elizabeth Jack's body was found, probably six days since she died. Memories were short, Rebus knew. Her photograph had been in all the newspapers, had appeared on television and on several hundred police posters. And still no one had come forward with information. He'd worked through the weekend, seeing little of Patience, and he'd come up with this notion, this latest straw to be clutched at.

The scenery deepened around him, growing wilder and quieter. He was in Glenshee. In it and through it as quickly as he could. There was something sinister and empty about the place, a louring sense of disease. The Devil's Elbow wasn't the treacherous spot it had seemed in his youth; the road had somehow been levelled, or the corner straightened. Braemar… Balmoral… turning off just before Ballater towards Cockbridge and Tomintoul, that stretch of road which always seemed to be the first of the winter to close for snow. Bleak? Yes, he'd call it bleak. But it was impressive, too. It just went on and on and on. Deep valleys hewn by glaciers, collections of scree. Rebus's geography teacher had been an enthusiast.

He was close now, close to his destination. He turned to the directions which he had scribbled down, an amalgam of notes from Sergeant Moffat and Gregor Jack. Gregor Jack…

Jack had wanted to talk with him about something, but Rebus hadn't given him the chance. Too dangerous to get involved. Not that Rebus believed for one second that Jack had anything to hide. All the same… The others though, the Rab Kinnouls and Ronald Steeles and Ian Urquharts… there was definitely… well, maybe not definitely… but there was… ach, no, he couldn't put it into words. He didn't really want to think about it even. Thinking about it, about all those permutations and possibilities, all those what ifs… well, they just made his head whirl.

'Left and then right… along the track beside a fir plantation… up to the top of the rise… through a gateway. It's like Treasure Hunt.' The car was behaving impeccably (touch wood). Touch wood? He only had to stop the car and stretch his arm out of the window. No plantation now, but a wild wood. The track was heavily rutted, with grass growing high along a strip between the ruts. Some of the larger potholes had been filled in with gravel, and Rebus's speed was down to five miles an hour or less, but that didn't seem to stop his bones being shaken, his head snapped from side to side. It didn't seem possible that there could be a habitation ahead. Maybe he'd taken a wrong turning. But the tyre tracks he was following were fresh enough, and besides, he didn't fancy reversing all the way back along the trail, and there was no spot wide enough for a three-point turn.

At last, the surface improved, and he was driving on gravel. As he turned a long, high-cambered bend, he found himself suddenly in front of a house. On the grass outside was parked a police Mini Metro. A narrow stream trickled past the front entrance. There was no garden to speak of, just meadow and then forest, and a smell of wet pine in the air. In the distance, beyond the back of the house, the land climbed and climbed. Rebus got out of the car, feeling his nerves jangle back into position. The door of the Metro had already opened, and out stepped a farm labourer in police uniform.

It was like some sort of Guinness challenge: how large a man can you get in the front of a Mini Metro? He was also young, late teens or early twenties. He gave a big rubicund smile.

'Inspector Rebus? Constable Moffat.' The hand Rebus shook was as large as a coal shovel but surprisingly smooth, almost delicate. 'Detective Sergeant Knox was going to be here, but something came up. He sends his apologies and hopes I'll do instead, this being my neck of the woods, so to speak.'

Rebus, who was rubbing his neck at this point, smiled at the joke. Then he pressed a thumb either side of his spine and straightened up, exhaling noisily. Vertebrae clicked and crunched.

'Long drive, eh?' Constable Moffat commented. 'But you've made not bad time. I've only been here five minutes myself.'

'Have you had another look round?'

'Not yet, no. Thought I'd best wait.'

Rebus nodded. 'Let's start with the outside. Big place, isn't it? I mean, after that road up to it I was expecting something a bit more basic.'

'Well, the house was here first, that's the point. Used to have a fine garden, well-kept drive, and that forest was hardly there at all. Before my time, of course. I think the place was built in the 1920s. Part of the Kelman estate. The estate got sold off bit by bit. There used to be estate workers to keep the place in check. Not these days, and this is what happens.'

'Still, the house looks in good nick.'

'Oh, aye, but you'll see there's a few slates missing, and the gutters could do with patching up.'

Moffat spoke with the confidence of the DIYer. They were circling the house. It was a two-storey affair of solid-looking stone. To Rebus's mind, it wouldn't have been out of place on the outskirts of Edinburgh; it was just a bit odd to find it in a clearing in the wilderness. There was a back door, beside which sat a solitary dustbin.:

'Do the bins get emptied around here?'

'They do if you can get them down to the roadside.'

Rebus lifted the lid. The smell was truly awful. A rotting side of salmon, by the shape of it, and some chicken or duck bones.

'I'm surprised the animals haven't been at those,' Moffat said. 'The deer or the wildcats…"

'Looks as though it's been in the bin long enough, doesn't it?'

'I wouldn't say they were last week's leavings, sir, if that's what you're getting at.'

Rebus looked at Moffat. 'That's what I'm getting at,' he agreed. The whole of last week, and for a few days before that, Mrs Jack was away from home. Driving a black BMW. Supposedly staying here.'

'Well, if she did, nobody I've spoken to saw her.'

Rebus held up a door key. 'Let's see if the inside of the house tells a different story, eh?' But first he returned to his car and produced two pairs of clear polythene gloves. He handed one pair to the constable. 'I'm not even sure these'll fit you,' he told him. But they did. 'Right, try not to touch anything, even though you're wearing gloves. It might be you could smear or wipe a fingerprint. Remember, this is murder we're talking about, not joyriding or cattle rustling. Okay?'

'Yes, sir.' Moffat sniffed the air. 'Did you enjoy your chips? I can smell the vinegar from here.'

Rebus slammed shut the car door. 'Let's go.'

The house smelt damp. At least, the narrow hallway did. The doors off this hallway were wide open, and Rebus stepped through the first, into a room which stretched from the front of the house to the back. The room had been decorated with comfort in mind. There were three sofas, a couple of armchairs, and beanbags and scatter cushions. There were TV and video, and a hi-fi system sitting on the floor, one of its speakers lying side on. There was also mess.

Mugs, cups and glasses for a start. Rebus sniffed one of the mugs. Wine. Well, the vinegary stuff left in it had once been wine, Empty bottles of burgundy, champagne, armagnac. And stains – on the carpet, on the scatter cushions, and on one wall, where a glass had landed with some force, shattering on impact. Ashtrays overflowed, and there was a small hand-mirror half hidden under one of the floor cushions. Rebus bent down over it. Traces of white powder around its rim. Cocaine. He left it where it was and approached the hi-fi, examining the choice of music. Cassettes, mostly. Fleetwood Mac, Eric Clapton, Simple Minds… and opera. Don Giovanni and The Marriage of Figaro.