Michael didn’t know if he meant Peter and Amy or the virals. The thought occurred to him, with a vague acceptance, that they were all going to die up here, that none of them would ever leave this frozen, barren place. Sara and Greer were silent—thinking the same thing, Michael thought, or maybe they were just too cold to speak. His hands were so stiff he doubted he could fire, much less reload, his rifle. He tried to take a drink from his canteen to steady himself, but it was frozen solid.

From out of the darkness they heard the sound of Alicia’s horse, riding back at a trot. She pulled up beside them.

“Tracks,” she said, gesturing with a quick tip of her head. “There’s an opening in the fence.”

She heeled her mount, not waiting for them, and barreled back they way she’d come. Without a word Greer followed, the others bringing up the rear. They were in the trees again. Alicia was riding faster now, galloping through the snow. Michael heeled his mount, urging the animal forward. Beside him, Sara bent her neck low over her mount as the branches skimmed past.

Something was moving above them, in the trees.

Michael lifted his face in time to hear a gun go off behind him. No sooner had this happened than a violent force slapped him from the rear, shoving the air from his lungs and catapulting him headfirst over the horse’s neck, his rifle swinging out from his hand like a whip. For a single instant he felt himself suspended painlessly over the earth—part of his mind paused to register this surprising fact—but the sensation didn’t last; he hit the ground with a jolt, landing on his back in the snow, and now there were other things to think about. He had, he saw, come to rest directly in the path of his own horse. He rolled over on his side, covering the back of his head with his hands as if this might actually help; he felt the wild torrent of air as the panicked animal bounded over him, followed by the concussion of its hooves, one impacting just inches from his ear.

Then it was gone. Everyone was gone.