Purification

were awake too. Clare needed to get some sleep but she couldn’t.
    She felt increasingly anxious and uncomfortable. Her guts were twisting with pain. Maybe it was just nerves? Perhaps it was the overdose of sugar she’d taken when she’d eaten earlier. Whatever the reason, the very thought of food now made her want to vomit. She’d had diarrhoea an hour or so ago. Christ it had been humiliating. She’d sat on a dried-out toilet pain in the furthest corner of the building and had cried with the discomfort and degradation of the experience. She was sure that everyone had been able to hear her. Even now after living rough for almost six weeks and going without even the most basic of human necessities, sometimes it was still too much for her. She was a teenage girl and, despite what had happened to the rest of the world, her body had continued to develop as it would normally have been expected to. She’d started her first period a week and a half ago. Donna had helped her and had reassured her as much as she could but it hadn’t been easy - it was obvious that she was struggling too.
    Everyone was struggling.
    Clare lay on her back and looked up at the ceiling, studying the many metal girders which supported the roof and wishing that the huge lights hanging high above her would work. She’d be prepared to risk attracting the attention of the bodies outside if she could just turn on the lights and see clearly for a while. She wanted a little light and certainty. The darkness and shadow unnerved her. She hated it even when she was in relatively familiar surroundings, but this place was cold and unknown. She hated the darkness more than ever tonight.
    Her eyes were becoming heavy but still she couldn’t sleep. Clare desperately needed to relax and start building up her energy reserves. She knew that as soon as day broke they’d most probably be up and out again and she didn’t know when they’d next be able to stop. She didn’t know if she’d have enough strength to be able to make it through tomorrow. She found it incredibly difficult to keep going when they didn’t know where or what they were going to.
    She just hoped that tomorrow would be relatively easy and painless and…
    She could hear something.
    She lifted herself up onto her elbows and listened intently. There it was in the distance - a faint, mechanical sound. The world was so still that the unexpected noise seemed directionless and vague and she wondered at first whether she was just imagining it. Was it just a cruel trick her tired mind was playing on itself? The sound became fractionally louder, and she made the logical assumption that it must have been more soldiers from the base. Perhaps a few more of them had managed to get to their vehicles and get away from the bunker. Maybe they were looking for the survivors? Maybe they’d just come this way by chance? Whatever the source of the noise, it was still faint and it seemed for a while to wash in and out of range. It could have been a mile away or ten. Clare had no way of knowing where it was coming from and she was too afraid to risk getting up and going to the window and looking for it. She didn’t want to be seen by any of the things outside.
    It was getting louder.
    She wasn’t the only one who had heard it. She noticed that another couple of people (she couldn’t see who) were now sitting up and listening. She leant across and shook Donna’s shoulder.
    ‘What?’ Donna grumbled lethargically before suddenly remembering where she was and jumping up, worried that something was wrong or that something had happened.
    ‘What’s the matter?’
    ‘Listen,’ Clare whispered.
    The noise was definitely moving closer now. It sounded like an engine of sorts, but not the engine of a car, truck or lorry. It continued to steadily increase in volume and, as it got louder, it began to change and to gradually become clear. A relentless mechanical chop, chop, chop could now be heard above the general din. Those survivors who were awake knew what it was they could hear, but they refused to believe it. Louder and louder now until the building felt like it was beginning to shake and the air was filled with the deafening sound. Michael got up and ran to the front of the warehouse, desperate to see what was making the noise and also concerned that it would attract many more unwanted bodies to the scene. All of his worries were forgotten instantly when, from out of nowhere, a brilliant shaft of bright