did not think it worth their while wasting road salt on this useless bit of roadway. The house lay about seventy-five yards further on, slightly above road level and at a sharp angle to it. He stopped in front of it, looked around and said quietly:
‘Zachrisson?’
The man in the bushes shook himself and came up to him.
‘Bad news,’ said Gunvald Larsson. ‘You’ve got two more hours. Isaksson is off sick.’
‘Hell!’ said Zachrisson.
Gunvald Larsson surveyed the scene. Then he made a disgruntled grimace and said:
‘It’d be better if you stood up on the slope.’
‘Yes, if I want to freeze my arse off,’ said Zachrisson misanthropically.
‘If you want a decent view. Has anything happened?’
The other man shook his head.
‘Not a damn thing,’ he said. ‘They had some sort of party up there a while back. Now it looks as if they’re lying up there sleeping it off.’
‘And Malm?’
‘Him too. It’s three hours since he put his light out.’
‘Has he been alone all the time?’
‘Yes, seems so.’
‘Seems? Has anyone left the house?’
‘I haven’t seen anyone.’
‘What have you seen, then?’
‘Three people have gone in since I came. A man and two women. They came in a taxi. I think they were in on that party.’
‘Think?’ said Gunvald Larsson inquiringly.
‘Well, what the hell is one to think? I haven’t got …’
The man’s teeth were chattering so that he had difficulty in speaking. Gunvald Larsson inspected him critically and said:
‘What haven’t you got?’
‘X-ray eyes,’ said Zachrisson dismally.
Gunvald Larsson was inclined to severity and had little understanding for human weaknesses. As an officer, he was anything but popular and many people were afraid of him. If Zachrisson had known him better, he would never have dared behave as he had, that is, naturally; but not even Gunvald Larsson could wholly ignore the fact that the man was exhausted and cold, and his condition and ability to observe would hardly improve over the next few hours. He realized what ought to be done but did not plan to drop the matter for that reason. He grunted irritably and said:
‘Are you cold?’
Zachrisson gave a hollow laugh and tried to scrape the icicles off his eyelashes.
‘Cold?’ he said with dull irony. ‘I feel like the three men in the burning fiery furnace.’
‘You’re not here to be funny,’ said Gunvald Larsson. ‘You’re here to do your job.’
‘Yes, sorry, but—’
‘And one part of that job is keeping warm and properly dressed and moving your flat feet occasionally. Otherwise, you may be left standing there like a damn snowman when something happens. And then perhaps it won’t be so funny … afterwards.’
Zachrisson began to suspect something. He shivered awkwardly and said apologetically:
‘Yes, of course, that’s okay, but—’
‘It’s not at all okay,’ said Gunvald Larsson angrily. ‘I happen to have to take the responsibility for this assignment and I prefer not to be messed about by some bungler in the ordinary force.’
Zachrisson was only twenty-three years old and an ordinary policeman. At the moment he belonged to the Protection Section in the Second District. Gunvald Larsson was twenty years older and an inspector in the Stockholm Murder Squad. When Zachrisson opened his mouth to reply, Gunvald Larsson raised his large right hand and said harshly:
‘No more backchat, thanks. Get off to the station in Rosenlundsgatan and have a cup of coffee or something. In precisely half an hour, you’re to be back here, fresh and alert, so you’d better get a move on.’
Zachrisson went. Gunvald Larsson looked at his wristwatch, sighed and said to himself, ‘Rookie.’
Then he turned right around, walked through the bushes and began climbing up the slope, muttering and swearing under his breath because the thick rubber soles of his Italian winter shoes could not get a grip on the icy stones.
Zachrisson had been right in that the knoll did not offer any shelter whatsoever against the mercilessly biting north wind, and he himself had been right when he had said that this was the best observation point. The house lay directly in front and slightly below him. He could not help observing what happened in the building and its immediate surroundings. The windows were all wholly or partly covered with frosted ice and no lights were showing behind them. The only sign of life was the smoke from the chimney, which hardly had time to be coloured by the cold before it was torn to shreds by the wind and rushed away in great cotton-wool blobs up into the starless sky.
The man on the knoll automatically moved his feet from side to side and flexed his fingers inside his sheepskin-lined gloves. Before becoming a policeman, Gunvald had been a sailor, first as an ordinary seaman in the navy, later on cargo ships in the North Atlantic, and many wintry watches on open bridges had taught him the art of keeping warm. He was also an expert on this sort of assignment, though nowadays he preferred to restrict himself to planning and supervising them. After he had stood on the knoll for a while, he was able to make out a flickering light behind the window furthest to the right on the second floor, as if someone had struck a match to light a cigarette or look at the time, for instance. He glanced automatically at his own watch. It was four minutes past eleven. Sixteen minutes since Zachrisson had left his post. By this time, he was presumably sitting in the canteen at Maria police station, filling himself with coffee and grumbling to the off-duty uniformed policemen, a short-lived pleasure, for in seven minutes the man would have to be on the march back again. If he did not want to be in for the rollicking of the century, thought Gunvald Larsson grimly.
Then he thought for a few minutes about the number of people who might be in the house at that particular moment. There were four flats in the old building, two on the first floor and two on the second floor. Up on the left lived an unmarried woman in her thirties, with three children, all with different fathers. That was more or less all he knew about the lady and that was enough. Below her, to the left on the first floor, lived a married couple, old people. They were about seventy and had lived there for almost half a century, in contrast to the upper flats, which changed tenants rapidly. The husband drank and, in spite of his venerable age, he was a regular customer in the cells at Maria police station. To the right on the second floor lived a man who was also well known, but for more criminal reasons than just Saturday-night boozing. He was twenty-seven and already had six different sentences of varying lengths behind him. His crimes varied from drunken driving, breaking and entering, to assault. His name was Roth and it was he who had thrown a party for his one male and two female chums. Now they had turned off the record-player and the light, either to sleep or else to continue the festivities in some other way. And it was in his flat that someone had struck a match.
Below this flat, at the bottom right, lived the person whom Gunvald Larsson was watching. He knew what this person’s name was and what he looked like. On the other hand, oddly enough, he had no idea why the man had to be watched.
It had come about in this way: Gunvald Larsson was what the newspapers in exalted moments refer to as a murder-scout, and as at this particular moment there was no special murderer to scout for, he had been loaned to another department to be responsible for this assignment, on top of his own duties. He had been allocated a scratch collection of four men and given simple directions: Ensure that the man in question does not disappear and that nothing happens to him and note whom he meets.
He