'Is that blood on your clothes?' he asked me.

'Probably. I haven't had time to look. I came here to-'

'What do you mean, you were there!'

He got up from behind his desk and came close to me and stared at me with his eyes screwed up in fatigue and suspicion and frustration. 'What else do you know about this?'

'Nothing.'

'Is that his blood?'

'Probably. It's not mine.'

I heard toe girl say oh God, very softly.

'If you have any more information, Welford, I shall ask — '

'Wexford, and listen. I've given you all I know. Now I want something from you: five thousand riels in cash, for t.c.s, and a message for BL-565 Extension 9. You can add it on to the one you're sending on the subject of Chepstow.'

I tried to think of anything else I wanted from him but there were mental blocks forming because I'd got out of that courtyard very fast and gone to ground and surveyed the block of apartments corridor by corridor in the hope of locating the sniper before I'd drawn blank and got a lift from a street-cleaning lorry crammed with refugees on their way to the airport, The mental blocks were forming because of other things too: mostly the need to reassess the situation in the light of what had happened. There were a lot of things I didn't know and would have to find out but the thing I knew for certain was that London had manoeuvred me into the Kobra mission and set me running and it hadn't been done with a directive: it had been done with a bullet.

When they'd killed Harrison in Milan he'd been alone and when they'd killed Hunter in Geneva he'd been alone but when they'd killed Chepstow I'd been there and for the first time Control had a senior executive in the field to take over. Egerton had been pushing me into one phase after another, trying to connect me with the action before I got bored and took on a mission for Parkis or Mildmay or Sargent instead, and it hadn't worked in Istres and it hadn't worked in Rome but it had worked in Phnom Penh and I had an immediate objective: Erich Stern.

Kobra was mine now, exclusive.

'Who the hell are you?' the ambassador asked.

'It doesn't matter who I am,' I told him. 'All you need to know is why you should give me assistance. Tell your wireless operator to put through a special facilities request to BL-565 Extension 9, and you'll get the point.'

There was a distilled-water dispenser in the corner of the room and I went over and filled one of the.waxed cups and drank, shutting my eyes for a moment and trying to forget. He'd looked surprised, in the instant before he was hit, but at the time I didn't understand. Conceivably he'd seen the bloody thing hi the last few yards of its travel, the sun shining on it and its configuration growing larger with the passing of each microsecond. Just a look of surprise-not fear or anything. Perhaps he'd thought it was a bee.

I supposed they'd cable her: the pretty girl in the twin-set with the sun in her eyes.

'I imagine you know,' I said as I dumped the cup, 'what that particular station is?'

'I don't happen to work in the cypher room, Mr Wexford.'

He was still standing bolt upright in the middle of the office, perhaps wondering if he could get me arrested for anything.

'Good point,' I said. 'For your information it's the secret log designation for No. 10 Downing Street and the special facilities request I'm making will go direct to the Prime Minister's secretary. For Christ's sake,' I said reasonably, 'I'm not asking for troops or a destroyer or anything, so let's get it over with, shall we?'

He stood there for another five seconds and then went back to his desk.

'You intelligence people are a damned nuisance,' he said and picked up the intercom phone. 'Give me mat number again — the signals number.'

So I gave it to him and he got on to the cypher room and I waited till he'd told the operator what was wanted, then. I said: Tell them they can get a message through to Q-15, Asian theatre, till you shut this place up and go. With your permission, of course.'

He began talking into the phone again.

'Who was it?' the girl asked me.

'What?'

'Who shot Brian?'

'I don't know.'

She was staring at me, through me, with her eyes like ice.

'Jesus Christ,' she said, and her voice faltered, 'I'd give a lot to find out.' She turned away suddenly and went back into the hall and I heard her sobbing out all the four-letter words she could think of, as quietly as she could. Then I remembered that people can look a lot different in photographs, especially if the sun's in their eyes.

'As soon as you can,' the ambassador said, and put down the phone, pinching the bridge of his nose. 'I shouldn't think we've got five thousand,' he said, 'or anything like it. We'll need some for ourselves, to bribe our way through difficulties, if I know anything about it.' He got up and took the portrait of the Queen and Philip off the wall and began fiddling with the knobs on the safe. 'Poor little devil. If you know anything else about this terrible affair, I think it's your duty to tell me.'

'Nothing else. Nothing at all.'

He swung the door of the safe open and turned to look at me for a moment, his eyes weary.

'I suppose he was mixed up in some sort of intelligence work too, was he? That's why they — ' he shrugged with one hand, and didn't finish.

'It'll be easier all round,' I said, 'if he's remembered as the second cultural attache. Full stop.'

The driver shook his head and said no good, no good, so I got in and gave him five hundred dels in denominations of fifty and told him he was my driver for the rest of the day and I wanted to go to the Royal Cambodian Hotel just as fast as he could do it. It was between the US Embassy and the Presidential Palace and we had to make a detour round the evacuation zone near the Bassac River, where three or four hundred Marines were protecting the operation.

The ambassador had only been able to let me have a couple of thousand so I'd have to go easy with it. Most of the services were breaking down in the city and there didn't seem to be much of a future, so that hard cash was the only remaining key to a lot of things.

The hotel looked abandoned when we got there but I found a last-ditch skeleton staff in the foyer with a French-speaking Eurasian supervising at the desk.

'J'ai un ami chez vous — Monsieur Erich Stern. II n'est pas parti, j'espere?'

He slid a perfectly-manicured finger down the page of the register, glancing up as the sound of light bombardment began vibrating in the air, then glancing down again.

'Monsieur Stern est toujours la, m'sieur. Suite 9. Vous voulez lui telephoner, ou — '

'Plus lord. D'abord, je voudrais une chambre pour moi-meme.'

He gave me Number 91, asked about luggage, and glanced a second time at my clothes without comment. My passport said 'press correspondent' and that explained a lot of things in a place like this, including the bloodspots and the bandage on my wrist they'd given me in Rome and the fact that I wanted a room at the best hotel in Phnom Penh when most people were getting out of the place in a hurry. I'd had to leave my suitcase behind when I'd got the lift in the helicopter because the pilot had been bringing troops in and the weight was critical.

He called for a boy to take me to my room.

A different vibration was in the air and I identified it as the throb of chopper blades as a new wave came across to the airport from one of the carriers.

'Please?'

I followed the boy. The lift wasn't working because some of the power lines had been hit last evening, which explained the candles everywhere in bowls and saucers. We took the stairs and the boy gave little bows on each landing and pointed upwards again. There was a suite on each floor and that was why I'd asked for a room on the ninth: Erich Stern was the immediate objective and I was going to stay as close to him as I could; but I didn't think there was any point in trying to see him about getting a girl out of the country until I'd got a few answers worked out in my head because this place had become a red sector for me when that bullet had made a hit: the 'scope-sight must have passed across my image as the sniper had lined up his shot.