My pulse was racing as he brought the car to a halt in the long-abandoned car park, strewn with rubbish left by fly-tippers and dotted with deep-rooted weeds that had forced themselves through cracks in the asphalt. John turned off the engine and an eery silence descended on the dimly lit interior of our family car. For a moment or two we both stared straight ahead at the graffiti adorned wall of the derelict building, wa...