I could hear the whine of a car’s motor turning in reverse and didn’t need a second telling. I was on my feet in an instant and sprinting hard for Kirkbrae House and the escape route of Bell’s Brae. We hadn’t covered ten yards when I realized that Peter wasn’t with us. I heard Danny shouting from the far side. “What the fuck’s he doing?” And Tam grabbed my arm.

We turned to see Peter crouched up on the parapet, hanging on to a spike with one hand, his other stretched out towards the panicked figure of Patrick Kelly, almost as if he had pushed him. Kelly’s arms were windmilling in a desperate attempt to retain his balance.

But it was already a lost cause. And without a sound he toppled into darkness. It was the silence of that moment that lives with me still. The boy never called out. Never cried, never screamed. Just fell soundlessly into the shadow of the bridge. Every fibre of me wanted to believe that somehow he would survive the fall. But I knew, beyond question, that he wouldn’t.

“Fuck!” I could feel Tam’s breath on my face. “He fucking pushed him!”

“No!” I knew how it looked. But I knew, too, that there was no way that Peter had done that.

Two uniformed police officers had jumped out of the patrol car now, and were running along the bridge towards us. I sprinted back to grab my brother and half drag him with me towards the others waiting at the south end. He was whimpering, desperate. His face wet and shining with tears. “He called for help,” he said, gulping great lungfuls of air to feed his distress. “I tried to grab him, Johnny, honest I did.”

“Hey!” the voice of one of the police officers called out in the dark. “You boys! Stop! What are you doing out here on the bridge?”

It was the signal for us to scatter. I don’t know where the Kelly boys went, but me and Peter and Catherine went pell-mell down Bell’s Brae, stumbling and sliding dangerously on the cobbles, hardly daring to look back. The darkness of the night, along with the shadows of buildings and trees, swallowed us into obscurity, and without a word spoken we climbed the hill at the other side towards the twin towers of The Dean.

I don’t know how, but everyone at The Dean seemed to know about Patrick Kelly’s fall from the bridge first thing the following morning. And then, when someone telephoned from the village to say that school had been cancelled for the day, everyone knew the worst. A boy had died falling from the bridge late the night before. None of the staff knew yet who it was. But there wasn’t a boy or girl at The Dean who didn’t.