I shook my head and trudged up the stairs. I'd got as far as the top step on that flight when the phone went again. I froze.

If I answered it…. But if I didn't, and father did….

I ran back down, picked it up, heard the coins go in; then "Bastard!" followed by a series of deafening crashes as plastic met metal and glass. I closed my eyes and listened to the cracks and smashes until one especially loud thump ended in a low buzz telephones don't usually make; then I put the phone down again, turned, looked upward, and set wearily off, back up the stairs.

I lay in bed. Soon I would have to try some long-range fixing of this problem. It was the only way. I'd have to try to influence things through the root cause of it all: Old Saul himself. Some heavy medicine was required if Eric wasn't to wreck single-handedly the entire Scottish telephone network and decimate the country's canine population. First, though, I would have to consult the Factory again.

It wasn't exactly my fault, but I was totally involved, and I might just be able to do something about it, with the skull of the ancient hound, the Factory's help and a little luck. How susceptible my brother would be to whatever vibes I could send out was a question I didn't like too much to think about, given the state of his head, but I had to do something.

I hoped the little puppy had got well away. Dammit, I didn't hold all dogs to blame for what had happened. Old Saul was the culprit, Old Saul had gone down in our history and my personal mythology as the Castraitor, but thanks to the little creatures who flew the creek I had him in my power now.

Eric was crazy all right, even if he was my brother. He was lucky to have somebody sane who still liked him.

WHEN Agnes Cauldhame arrived, eight and a half months pregnant, on her BSA 500 with the swept-back handlebars and eye of Sauron painted red on the petrol-tank, my father was, perhaps understandably, not ferociously pleased to see her. She had, after all, deserted him almost immediately after my birth, leaving him holding the squealing baby. To disappear without so much as a phone call or a postcard for three years and then breeze back down the path from the town and across the bridge — rubber handlebars just clearing the sides and no more — carrying somebody else's baby or babies and expecting to be housed, fed, nursed and delivered by my father was a little presumptuous.

Being only three at the time, I can't remember much about it. In fact I can't remember anything about it at all, just as I can't remember anything before the age of three. But then, of course, I have my own good reasons for that. From the little I've been able to piece together when my father has chosen to let slip some information, I've been able to get what I think is an accurate idea of what happened. Mrs Clamp has come across with some details on sporadic occasions, too, though they are probably no more to be relied on than what my father's told me.

Eric was away at the time, staying with the Stoves in Belfast.

Agnes, tanned, huge, all beads and bright caftan, determined to give birth in the lotus position (in which she claimed the child had been conceived) while going "Om', refused to answer any of my father's questions about where she had been for the three years and who she had been with. She told him not to be so possessive about her and her body. She was well and with child; that was all he needed to know.

Agnes ensconced herself in what had been their bedroom despite my father's protests. Whether he was secretly glad to have her back, and perhaps even had some foolish idea that she might be back to stay, I can't say. I don't think he is all that forceful really, despite the aura of brooding presence he can show when he wants to be impressive. I suspect that my mother's obviously determined nature would have been enough to master him. Anyway, she got her way, and lived in fine style for a couple of weeks that heady summer of love and peace, etcetera.

My father still had full use of both his legs at the time, and had to use them to run up and down from kitchen or lounge to the bedroom and back when Agnes rang the little bells sewn into the bell-bottoms of her jeans, which lay draped over a chair by the side of the bed. On top of that, my father had to look after me. I was toddling around at the time getting into mischief the way any normal, healthy three-year-old boy does. As I say, I can't remember anything, but I'm told that I did seem to enjoy annoying Old Saul, the bandy-legged and ancient white bulldog my father kept — I'm told — because it was so ugly and it didn't like women. It didn't like motorbikes, either, and had gone wild when Agnes first arrived, barking and attacking. Agnes kicked it across the garden and it ran off yelping into the dunes, only reappearing once Agnes was safely out of the way, confined to bed. Mrs Clamp maintains that my father ought to have put the dog down years before all this happened, but I think the wet-jowled, yellow-bleary-eyed, fishy-smelling old hound must have worked on his sympathy just by being so repulsive.

Agnes duly went into labour about lunch-time one hot still day, pouring sweat and Omming to herself while my father boiled lots of water and things and Mrs Clamp dabbed Agnes's brow and like as not told her of all the women she'd known who had died in childbirth. I played outside, running around in a pair of shorts and — I imagine — quite happy to have the whole pregnancy thing going on because it gave me more freedom to do as I liked about the house and garden, free from my father's supervision.

What I ever did to annoy Old Saul, whether it was the heat that made him especially cantankerous, whether Agnes really had kicked him in the head when she arrived, as Mrs Clamp says — none of this do I know. But the little tousle-headed, dirty, tanned, bold toddler that was me might well have been up to some sort of mischief involving the beast.

It happened in the garden, over a piece of ground that later became a vegetable patch when my father went on his health-food binge. My mother was heaving and grunting, pushing and breathing, an hour or so away from producing, and attended by both Mrs Clamp and my father, when all three (or at least two; I suppose Agnes might have been too preoccupied) heard frenzied barking and one high, awful scream.

My father rushed to the window, looked out and down into the garden, then shouted and ran out of the room, leaving Mrs Clamp goggle-eyed, alone.

He ran out into the garden and picked me up. He ran back into the house, shouted up to Mrs Clamp, then put me on the table in the kitchen and used some towels to stop the bleeding as best he could. Mrs Clamp, still ignorant and quite enraged, appeared with the medicine he had demanded, then almost fainted when she saw the mess between my legs. My father took the bag from her and told her to get back upstairs to my mother.

One hour later I had recovered consciousness, was lying drugged and bloodless in my bed, and my father had gone out with the shotgun he owned then to look for Old Saul.

He found him in a couple of minutes, before he had properly left the house. The old dog was cowering by the door of the cellar, down the steps in the cool shadow. He whined and shivered, and my young blood mixed on his slavering chops with gamey saliva and thick eye-mucus as he girned and looked shakily and pleadingly up at my father, who picked him up and strangled him.

Now, I did eventually get my father to tell me this; and, according to him, it was just as he choked the last struggling life out of the dog that he heard another scream, this time from above, and inside the house, and that was the boy they called Paul being born. What sort of twisted thoughts went through my father's brain at the time to make him choose such a name for the child I cannot start to imagine, but that was the name Angus chose for his new son. He had to choose it by himself because Agnes didn't stay long. She spent two days recovering, expressed shock and horror at what had happened to me, then got on her bike and roared off. My father tried to stop her by standing in her way, so she ran him over and broke his leg quite badly, on the path before the bridge.