I could still go away, I thought. It wasn't too late. Travel. Wander by other seas, under other skies. I could go away and keep very quiet. I could still escape from the terror he induced in me. I could still… run away.
I left the coast and drove numbly to Cambridge. Stayed in the University Arms Hotel and, in the morning, went along to Tierson Pharmaceuticals Vaccine Laboratories. I asked for, and got, a Mr Livingston, who was maybe sixty and greyishly thin. He made small nibbling movements with his mouth when he spoke. He looks a dried-up old cuss, Ken Armadale had said, but he's got a mind like a monkey.
'Mr Halley, is it?' Livingston said, shaking hands in the entrance hall. 'Mr Armadale has been on the 'phone to me, explaining what you want. I think I can help you, yes I do indeed. Come along, come along, this way.'
He walked in small steps before me, looking back frequently to make sure I was following. It seemed to be a precaution born of losing people, because the place was a labyrinth of glass-walled passages with laboratories and gardens apparently intermixed at random.
'The place just grew,' he said, when I remarked on it. 'But here we are.' He led the way into a large laboratory which looked through glass walls into the passage on one side, and a garden on another, and straight into another lab on the third.
'This is the experimental section,' he said, his gesture embracing both rooms. 'Most of the laboratories just manufacture the vaccines commercially, but in here we potter about inventing new ones.'
'And resurrecting old ones?' I said. He looked at me sharply. 'Certainly not. I believe you came for information, not to accuse us of carelessness.'
'Sorry,' I said placatingly.
'That's quite right.'
'Well then. Ask your question.'
'Er, yes. How did the serum horses you were using in the nineteen forties get swine erysipelas?'
'Ah,' he said. 'Pertinent. Brief. To the point. We published a paper about it, didn't we? Before my time, of course. But I've heard about it. Yes. Well, it's possible. It's possible. It happened. But it shouldn't have done. Sheer carelessness, do you see? I hate carelessness. Hate it.'
Just as well, I thought. In his line of business, carelessness might be fatal.
'Do you know anything about the production of erysipelas antiserum?' he said.
'You could write it on a thumbnail.'
'Ah,' he said. 'Then I'll explain as to a child. Will that do?'
'Nicely,' I said.
He gave me another sharp glance in which there was this time amusement.
'You inject live erysipelas germs into a horse. Are you with me? I am talking about the past, now, when they did use horses. We haven't used horses since the early nineteen fifties, and nor have Burroughs Wellcome, and Bayer in Germany. The past, do you see?'
'Yes,' I said.
'The horse's blood produces antibodies to fight the germ, but the horse does not develop the disease, because it is a disease pigs get and horses don't.'
'A child,' I assured him, 'would understand.'
'Very well. Now sometimes the standard strain of erysipelas becomes weakened, and in order to make it virulent again we pass it through pigeons.'
'Pigeons?' I said, very politely. He raised his eyebrows. 'Customary practice. Pass a weak strain through pigeons to recover virulence.'
'Oh, of course,' I said. He pounced on the satire in my voice.
'Mr Halley,' he said severely. 'Do you want to know all this or don't you?'
'Yes, please,' I said meekly.
'Very well, then. The virulent strain was removed from the pigeons and subcultured onto blood agar plates.' He broke off, looking at the blankness of my ignorance. 'Let me put it this way. The live virulent germs were transferred from the pigeons onto dishes containing blood, where they then multiplied, thus producing a useful quantity for injecting into the serum horses.'
'That's fine,' I said. 'I do understand.'
'All right.' He nodded. 'Now the blood on the dishes was bull's blood. Bovine blood.'
'Yes,' I said.
'But owing to someone's stupid carelessness, the blood agar plates were prepared one day with horse blood. This produced a mutant strain of the disease.' He paused. 'Mutants are changes which occur suddenly and for no apparent reason throughout nature.'
'Yes,' I said again.
'No one realised what had happened,' he said. 'Until the mutant strain was injected into the serum horses and they all got erysipelas. The mutant strain proved remarkably constant. The incubation period was always 24-48 hours after inoculation, and endocarditis… that is, inflammation of the heart valves… was always the result.'
A youngish man in a white coat, unbuttoned down the front, came into the room next door, and I watched him vaguely as he began pottering about.
'What became of this mutant strain?' I said. Livingston nibbled a good deal with the lips, but finally said, 'We would have kept some, I dare say, as a curiosity. But of course it would be weakened by now, and to restore it to full virulence, one would have to…'
'Yeah,' I said. 'Pass it through pigeons.'
He didn't think it was funny. 'Quite so,' he said.
'And all this passing through pigeons and subculture on agar plates, how much skill does this take?'
He blinked. 'I could do it, of course.'
I couldn't. Any injections I'd handled had come in neat little ampules, packed in boxes. The man in the next room was opening cupboards, looking for something. I said, 'Would there be any of this mutant strain anywhere else in the world, besides here? I mean, did this laboratory send any of it out to anywhere else?'
The lips pursed themselves and the eyebrows went up. 'I've no idea,' he said. He looked through the glass and gestured towards the man in the next room. 'You could ask Barry Shummuck. He would know. Mutant strains are his speciality.'
He pronounced 'Shummuck' to rhyme with 'hummock'.
I know the name, I thought. I… oh my God. The shock of it fizzed through my brain and left me half breathless. I knew someone too well whose real name was Shummuck.
I swallowed and felt shivery. 'Tell me more about your Mr Shummuck,' I said.
Livingston was a natural chatterer and saw no harm in it. He shrugged. 'He came up the hard way. Still talks like it. He used to have a terrible chip on his shoulder. The world owed him a living, that sort of thing. Shades of student demos. He's settled down recently. He's good at his job.'
'You don't care for him?' I said.
Livingston was startled. 'I didn't say that.'
He had, plainly, in his face and in his voice. I said only, 'What sort of accent?'
'Northern. I don't know exactly. What does it matter?'
Barry Shummuck looked like no one I knew. I said slowly, hesitantly, 'Do you know if he has… a brother?'
Livingston's face showed surprise. 'Yes, he has. Funny thing, he's a bookmaker.' He pondered. 'Some name like Terry. Not Terry… Trevor, that's it. They come here together sometimes, the two of them… thick as thieves.'
Barry Shummuck gave up his search and moved towards the door.
'Would you like to meet him?' Mr Livingston said.
Speechlessly, I shook my head. The last thing I wanted, in a building full of virulent germs which he knew how to handle and I didn't, was to be introduced to the brother of Trevor Deansgate.
Shummuck went through the door and into the glass-walled corridor, and turned in our direction.
Oh no, I thought.
He walked purposefully along and pushed open the door of the lab we were in. Head and shoulders leaned forward.
'Morning, Mr Livingston,' he said. 'Have you seen my box of transparencies, anywhere?'
The basic voice was the same, self-confident and slightly abrasive. Manchester accent, much stronger. I held my left arm out of sight half behind my back and willed him to go away.
'No,' said Mr Livingston, with just a shade of pleasure. 'But Barry, can you spare…' Livingston and I were standing in front of a work bench which held various empty glass jars and a row of clamps. I turned leftwards, with my arm still hidden, and clumsily, with my right hand, knocked over a clamp and two glass jars.