Source A: Three taps in the dark

An original contemporary non-fiction-style practice text, written for this question.

I had expected the rescue site to be noisy. In my imagination, people shouted instructions, engines roared and equipment arrived in a heroic rush. Instead, the entrance to the old water tunnel lay behind a line of silver barriers, and everyone spoke as if a sleeping child were nearby.

At 1.17 a.m., a portable drill began to bite into the fallen rock. Its noise filled the valley, bounced from the bare hills and pressed against my chest. The machine sounded powerful enough to split the mountain. Yet at intervals it stopped, and in those pauses the whole rescue depended on something much smaller.

Daniel, a surveyor, had been inspecting the tunnel when part of its roof collapsed behind him. His final telephone message had lasted eleven seconds. He said he was unhurt. He said he could hear the metal pump pipe running beside the tunnel. Then, before the signal vanished, he added, ‘When the drilling stops, I’ll strike it three times.’

The first pause came suddenly. One moment the drill was hammering at the darkness; the next, the valley seemed to hold its breath. The rescue leader raised one gloved hand. Boots stopped scraping. A paper cup remained halfway to someone’s mouth. Even the generator had been switched off, leaving only the thin hiss of rain on waterproof coats.

We listened.

A drop of water struck the barrier. Somewhere behind us, a sheep called once. Then there was a faint metallic tick.

Several heads lifted. The rescue leader did not move.

Another tick followed, but this one was softer and farther away. A loose stone, someone whispered. The leader lowered her hand, and the drill started again. Its return felt less like action than defeat.

At 1.42, we repeated the ritual. Noise. Silence. Listening. Nothing.

At 2.03, the rain thickened and blurred the lamps into pale circles. Daniel’s brother stood beside the equipment van, staring at the tunnel entrance. He had refused a chair. Each time the drill stopped, his fingers tightened around the same unopened bottle of water. Nobody approached him. Hope had made a small, guarded space around him that the rest of us seemed afraid to enter.

After repeated pauses, I no longer trusted my hearing. The smallest sounds appeared to sharpen themselves: the click of a radio button, the creak of a jacket, my own breath arriving too quickly. I began to understand why the rescue leader watched our faces rather than the tunnel. One mistaken reaction could travel through the group before the truth had time to follow it.

At 2.26, the drill fell silent again.

For several seconds there was only rain.

Then the pipe answered.

One knock travelled through the metal, clear and deliberate. A second came after it. The third was quieter, but nobody mistook it for a stone.

Daniel’s brother closed his eyes. No one cheered. The rescue leader looked at her watch, pointed towards the drill and said, ‘Now we know where to work.’ Engines restarted; people moved; instructions crossed the valley. The waiting was over, but relief did not replace the tension. The three knocks had answered one question and made the next one unavoidable.