Within seconds, Tom and I hid in the mass of pipes, concealing ourselves by lying in a dried-out concrete sump under a pipe run. We were motionless and quiet, straining our ears. *Click* *Click* *Click*. We lay motionless under the burning June sun. *Click* *Click* *Click* Neither one of us dared to peek up, a head appearing above the parapet being an excellent giveaway. *Click* *Click* *Click* It sounded like someone on the concrete path near a neighbouring building.

For five minutes we baked in the relentless burning sun listening to all the clicking and weird noises around us. Trying to be as quiet as possible, I found a water bottle and took a sip. Ears straining, we listened intently at the billowing silence punctuated by the odd clicks and strange noises. Slowly it became apparent the noise wasn’t going to stop, and if this was someone walking, then they were literally marching on the spot. Finally, and another gulp of water later, I gingerly peered over the concrete rim of the sump and surveyed the scene. *Click* *Click* *Click*. I blinked the sweat out of my eyes and dared to breathe again. “Tom” I whispered, “I think it’s the metal. It’s all expanding around us in the heat. I don’t think there’s anyone there. Or there isn’t now.” Slowly we stood up and gingerly made our way to a more enclosed area; the whole area was clicking and banging, a weird quiet cacophony of metal easing and expanding in the temperature. Unnerved, we decided to get inside somewhere fast, and so we picked a building and tried to get in.