Purification

and squirmed and surged all around them. Hundreds were obliterated by flame and gunfire. Undeterred, more bodies continued to stagger across the mass of burning remains.
    Some three hundred metres away from the entrance to the base, the driver of the personnel carrier turned to the officer next to him.
    ‘Where’s the vent?’ he demanded. ‘Where’s the fucking vent?’
    Perhaps naively the troops had not stopped to consider the disorientating visual effect of so many bodies being packed tightly together on the ground. Shaking with nerves and fired up with adrenaline, the officer traced the path they had already taken on a map. He glanced up briefly to check his bearings but could see little through the front of the vehicle. Frantic, uncoordinated movements, jumping flame and dense clouds of heavy, noxious smoke were all that he could see.
    ‘Should be over there,’ he yelled, pointing over to his right as he continued to try and find a more accurate visual reference. The driver steered the carrier as directed, shielding his eyes from a blast of sudden brightness as more bodies were drenched with fire and destroyed. He watched in petrified disbelief as the creatures burned and yet continued to move. Inexplicably ignorant to the flames which quickly consumed them, the rotting cadavers staggered relentlessly forward until their last decaying muscles, nerves and sinews had been burnt away to nothing.
    ‘Got it,’ the driver gasped as he caught sight of the exhaust vent amongst the seething sea of figures. Standing just a few inches above the ground and surrounded by mud, moss and weeds, the location of the vent was made suddenly obvious by the movement of the bodies nearby and also by the mass of once-human remains which had accumulated around it. Drawn there by the comparative warmth coming up through the vent from the depths of the base, many bodies had become entangled with the low metal structure and had been trapped and wedged in place by the weight of countless more figures pressing forward against them. Clumsy, barely coordinated feet and legs had been twisted and had buckled under the combined weight of the huge crowd, leaving the metal vent partially obscured under mounds of cold grey flesh.
    ‘Drive straight over the top of it,’ ordered the officer.
    The driver did as instructed, turning the heavy vehicle towards the vent and accelerating through the bodies. The soldier moving in front of the carrier continued to soak the apparently endless crowd with fire, burning away the nearest of the hordes of lumbering cadavers which scrambled towards the convoy.
    Apart from the vent this area of the field was otherwise relatively flat and featureless. The driver of the personnel carrier powered over the top of the metal covering, smashing more burning bodies away to the side and scraping away a thick layer of once-human remains. Seeing that the way was now slightly clearer, the driver of the first jeep following behind gestured for the driver of the second to leave his vehicle straddling the vent as arranged. The second driver pulled forward and stopped when the metal opening was directly under the centre of the jeep’s mud and blood-splattered chassis. Leaning precariously over the side of his vehicle he saw that there was just a couple of inches clearance between the top of the vent and the bottom of the jeep. Perfect.
    The other two vehicles had continued to move forwards, changing course and heading towards the next nearest vent to repeat the manoeuvre. The second driver, now suddenly vulnerable without the protection of his jeep, sprinted after the others.
    From behind the row of soldiers standing in the entrance to the bunker Cooper still struggled to see what was happening. The clouds of repulsive, stagnant-smelling smoke which the gusting wind blew back inside the base stung his eyes and filled his nose and throat with a charred, nauseating taste.
    ‘What’s happening now?’ Baxter asked. As the length of time the soldiers had spent outside had increased, so the older man had slowly gained in confidence. He had now crept forward to stand just behind the shoulder of his colleague.
    ‘Looks like they’ve managed to get one vent cleared,’
    Cooper answered. ‘Can’t see what they’re doing now though. I’ve lost sight of them.’
    ‘Do you think they’re going to be able to do this…?’
    Baxter asked before being silenced by a sudden huge flash of flame. One of the nearest soldiers had