The way he described it, he made my head sound like some kind of jigsaw, and there was a note of genuine pride in his voice, as if it had been clever of him to finish it.
‘In short,’ I said, rather drily, ‘it was a success.’
I heard his lips part on his teeth. ‘Oh yes. Most certainly. How do you feel?’
‘Not bad.’ I paused. ‘It’s a strange idea, though, a piece of metal in your head –’
‘No stranger than a hip replacement,’ he said.
I didn’t agree. The point was, it was in my head. That’s what made it squeamish.
But Visser would have none of it. ‘You might experience some numbness where the cut nerves are,’ he went on cheerfully, ‘but there shouldn’t be too much discomfort. You’ll be up and about in no time.’
He was right about that. Within a week I’d recovered from the surgery and I was embarking on my rehabilitation. Every afternoon I was taken to the Mobility Training Centre, a special room in the east wing. It was laid out like a surreal, random version of the world outside. There were flights of stairs that stopped in mid-air. There were arbitrary brick walls – some knee-high, others reaching to the ceiling. There were kerbstones, but no roads. This was Dr Kukowski’s domain. Kukowski had a patient, almost weary manner, and his skin smelled of vinegar. I sometimes speculated on the effect his work might have on him. I could imagine him pausing halfway up the stairs at home, for example, unwilling to go further. Or stepping off the pavement into the path of an oncoming car because he had completely forgotten about the possibility of traffic.
Kukowski gave me my first cane. It was lighter than I’d expected. Longer, too, almost shoulder-height. I was supposed to hold it at waist-level and then walk forwards, scanning, rather in the manner of someone with a metal detector. Tap, tap, tap went the toughened nylon tip. There was something ludicrous about the whole process; I wanted to pour scorn on it. But behind Kukowski’s patience there lurked a threat: it was either the cane or it was back to tranquillisers, headaches, isolation. I took the cane.
In the mornings I was still seeing Nurse Janssen. During the afternoons I had to pick my way through the obstacle course that was Kukowski’s world – a world that would be mine, he assured me, as soon as I was discharged. Towards evening Visser would pay me a visit. Sometimes he stayed just long enough to ask after my health. On other occasions we’d talk for an hour or more. He was almost always complimentary. Bilateral cortical damage is so rare, Martin. It may sound tactless, but it’s a privilege to have you here. Whenever I was alone I was encouraged to work on what Kukowski called my ‘long-cane technique’. There was the physical manipulation of the cane itself, of course, but there were also various mental skills and disciplines which had to be mastered. I had to learn how to use sound to determine distance and direction. I had to sensitise myself to echoes(a method known as echolocation). I had to be able to memorise a route. And so on. There seemed to be no end to it. It was the height of summer now, and I spent as much time as I could outdoors. Most days, after supper, I could be found in the clinic gardens, practising.
And that was when it happened.
One evening I was crossing the lawn, feeling as if I knew each mound, each root, each blade of grass by heart, when I realised that what lay in front of me – what I could ‘see’, as it were – was not the usual grey, featureless and empty. It was green, and there were shapes in it. You must be imagining it, I told myself. This is one of the illusions Visser warned you about. You think you’re seeing, but you’re not.
I stood quite still and looked around me.
The shapes in the green were trees. And I could see the lawn, too, reaching away from me, then sloping down. There was a smoothness at the end of it. A lake. I could see a stand of poplars,