A crack in the small frozen pond. Days later the ice is thin. Heat rises from the pond in contrast to its frigid surroundings. The forest is silent, no wind, no howling, just the empty biter-cold.
A thud from under the ice, a crack. Another thud, the ice doesn't give. A violent punch from beneath the ice and it gives in to the creature. It climbs it's way out of the ice and struggles for air. Its surroundings are new, scents are different, and colors are gone. Everything is white.
It climbed out of the pond shivering, it held itself as it braced the cold. Struggling to stand it tried to get its bearings. North is that way, South in the opposite, West and East. It stood and stumbled a few times before getting to its feet. It heard a noise, horses it gathered and continued towards them. It saw a wall of ice, getting closer as she followed the sounds. Its movement stopped as it heard something from behind. It gained a burst of energy and ran as fast as it could toward to wall since it was getting closer, but not close enough. It hid between the dense trees, concealing its presence. It was like the ice itself came to life to inhabit the body of the monster. Hunting for who knows what. The monster began to sulk away closer to the wall and the creature followed it. If it was heading towards the wall there's no telling what it can do. Tracking the monster with every turn it made the creature followed silent in the storm the was coming. Days later and grew closer to the wall. Finally, the day came where they were near a gate. The creature heard commotion from the other side and guess that there were people on the other side. It hid and waited. Slowly the gate opened and a few men came out the gate and with weapons and armor. The monster looked weak probably from not eating. It attacked them and completely severing the head off one of the men. The other two braced for a fight and attacked. They swung and barely injured the beast, the creature wondered. Another one went down. The man by himself could not fend the monster off. The creature lunged at the monster from behind locking its arms and legs around the monster. Pulling the monster from off the man it struggled to choke it, then it dawned on the creature that this monster had no breath, no heartbeat, no warmth to it, so it could not be killed through usual means. The man was still on the ground mouth agape at what was happening.
"Run!" The creature yelled.
The man darted under the gate that was closing on him and shook in fear. The creature fell from the back of the monster and quickly got up. Shuffling to find its stance it grabbed something from its pocket and grasped it. The monster fixed his gaze upon the hand and glared with icy blue eyes. The creature glared back with brilliant green ones intent on killing. It ducked and stabbed the monster, killing it with one blow. The creature backed away from the monster and stood there staring at it. Blood came from its ears, slowly down the neck. Memories flooded into the head and a wave of pain. It fell the world going silent and black. Only a few noises to be made out.
"What is that? It killed a white walker?!"
"Is it a wildling?"
"No, wildings don't look like that. She's barely clothed."
"A barely clothed woman north of the wall? Seems like a wildling to me."