“Incoming!” a loud voice bellowed from somewhere far over to his left, audible even over the sound of the swooping helicopter and the noise of everything else. Distracted, he looked up along the side of the truck toward the protective line of soldiers. Through the gaps between them he could see Haters advancing, hurtling forward from all angles and converging on the exposed building with deadly speed. Like pack animals desperately hunting scraps of food, they tore through holes in overgrown hedges, clambered over abandoned cars, and scrambled through the empty ruins of other buildings to get to the Unchanged. Mark watched transfixed as many of them were hacked down by a hail of gunfire coming from both the defensive line and the helicopter circling overhead, their bodies jerking and snatching as they were hit. For each one that was killed, countless more seemed to immediately appear to take their place, all but wrestling with each other to get to the front of the attack. Some of them seemed oblivious to the danger, more concerned with killing than with being killed themselves. Their ferocity was terrifying.

Mark heard the sound of pounding feet racing toward him. He spun around, ready to defend himself, but then stepped aside when he saw it was the first of a flood of refugees who were pouring out of a smashed first-floor window. He tried to help them up into the back of the truck, but his assistance was unwanted and unneeded. Sheer terror was driving these people forward, every man, woman, and child fighting with every other to get into one of the transports, desperate not to be left behind. After weeks of living in unimaginable squalor and uncertainty, and with their hideout now open and exposed, this was their last chance-their only chance-of escape.

The relentless gunfire and the thunder and fury of the helicopter overhead continued undiminished. Mark tried to block out the noise and concentrate on getting as many people as possible into the truck. Ahead of them, the soldiers were being forced back. Marshall revved the engine, his only way of letting Mark know he was about to leave. Terrified of being left behind, he ran forward and hauled himself up into his seat, leaving more refugees to try to cram themselves into the truck.

“This is getting shitty,” Marshall said, nodding over toward a section of the defensive line of soldiers that appeared dangerously close to being breached. “We’re going to-”

Before he could finish his sentence, a gap appeared in the line where a Hater woman took out a soldier as he reloaded. She knocked the soldier to the ground, leaped onto his chest, and caved his head in with a soccer-ball-sized lump of concrete. As the soldiers on either side tried to react and defend, one gap became two and then three and then four. In disbelief Mark watched as a huge beast of a Hater manhandled another soldier out of the way and smashed him up against a wall. The soldier continued to fire at his attacker, but the Hater seemed oblivious to the bullets that ripped into his flesh, continuing to move and fight until he finally dropped and died.

The speed and strength of the enemy were bewildering and terrifying. Marshall had seen enough. Following the lead of the truck to his right, without waiting for order or instruction, he accelerated. Unsuspecting refugees fell from the back of the truck and immediately began sprinting after the disappearing vehicle, but they didn’t stand a chance. Haters rushed them from either side, taking them out like animal predators preying on plentiful, slow-moving game on the savannah. In the distance the last few civilians spilled out of the building like lambs to the slaughter.

The third truck-the one that had been parked immediately to Marshall ’s left-hadn’t moved. Mark watched in the side mirror as Haters yanked the doors of the truck’s cab open and dragged the driver out, swarming over him like maggots over rotting food. Within seconds they’d enveloped the entire vehicle and were massacring the refugees who’d fought to get in the back to be driven to safety. As the distance between the truck he was in and the building behind him increased, all Mark could see was more refugees and stranded soldiers being wiped out in countless brutal, lightning-fast attacks. Above them all, the helicopter continued to circle and attack, its gunner’s orders now simply to destroy anything on the ground that still moved.

Those Haters who had escaped the carnage outside stormed into the building, looking for more of the Unchanged to kill. More than twenty of them moved from room to room, sweeping over every last square foot of space, desperate to kill and keep killing. One of them sensed something. In a narrow corridor he stopped beside an innocuous doorway that the rest of them had ignored. There were dirty handprints around the edges of the door, and he was sure he’d heard something moving inside. It was the faintest of noises, barely even audible amid the chaos of everything else, but it was enough. He grabbed the handle and pulled and pushed and shook it, but the door was locked. He took a hand axe from an improvised holster on his belt and began to smash at the latch. One of them was still in there, he was certain of it. He could almost smell them…

The short corridor was empty, and the noise of his axe splintering the wood temporarily drowned out the sounds of fighting coming from elsewhere. Ten strong strikes and the wood began to split. He hit the door hard with his shoulder and felt it almost give. Another few hits with the axe and another shoulder shove and it gave way. He flew into the dark, foul-smelling room and tripped over a child’s corpse that had been wrapped in what looked like an old, rolled-up projector screen. An Unchanged woman-the dead child’s mother, he presumed-ran at him from the shadows. Instead of attacking, she dropped to her knees in front of him and begged for mercy. He showed her none, grabbing a fistful of hair, then chopping his axe down into the side of her neck, killing her instantly. He pushed her body over. She collapsed on top of her child, and he looked down into her face, her dead, unblinking eyes staring back at him. He felt a sudden surge of power and relief, the unmistakable, blissful, druglike rush of the kill.

The room was filled with noise again as the circling helicopter returned. Taking cover behind a concrete pillar, he peered out through a small rectangular window and watched as more of the fighters still out in the open were taken out by machine-gun fire from above. Then, without warning, the helicopter turned and climbed and disappeared from view. He listened as its engines and the thumping of its rotor blades faded into the distance.

Danny McCoyne knew he had to get out of the building before they came back. He’d seen them use these tactics before. He knew what was coming next.

HAVE TO GET AWAY from here. It’s too dangerous to stay. If there’s one thing I’ve learned about our piss-weak, cowardly enemy, it’s that they always deal their deadliest blows from a distance.

The leaden feet of the woman’s corpse are blocking the door and stopping me from getting out. I drag her out of the way, then shift the kid’s body, kicking it back across the cluttered floor. The kid’s bloodstained projector-screen shroud unrolls, revealing his lifeless face. Jesus, he was one of us. I uncover him fully. His wrists and ankles are bound. Can’t see how he died, but he hasn’t been dead long, a few days at the most. Probably starved. Another pitiful example of an Unchanged parent refusing to accept their kid’s destiny and let go. Did she think she’d be able to tame him or find a “cure” or something? Dumb bitch.

Back out into the corridor. Most people have gone now, but I can still hear a few of them moving about, hunting down the last kills before they move on. I automatically head toward the back of the building, hoping I’ll find more cover going out that way. A small kid darts past me, moving so fast that I can’t even tell if it’s a boy or a girl, then doubles back when it can’t get out. I keep moving forward until I reach a T-intersection. There’s a fire door to my left, but it’s been blocked and I can’t get through. I follow three men and a woman the other way into a dank toilet that smells so bad it makes my eyes water. The sudden darkness is disorienting, and the man in front of me takes the full force of a clumsy but unexpected attack from an Unchanged straggler who’s hiding in the shadows under a sink. There’s hardly room to swing a punch in here, but between the five of us we get rid of him quickly. I smash his face into a cracked mirror with a satisfying thump. He leaves a bloody stain on the glass, just another mark among many.