Ghost

She is dangerous. Her muzzle is never too be removed. Blood can often be found dripping from her muzzle. It is thought she is a carnivore and a cannibal. Feasting on any corpses she can catch, including humans. Witness accounts tell that she actively hunts, playing an innocent herbivore equine, and then when in a close distance she will strike. Not much else is known about her. 

No one knows who, or what crafted her harness or muzzle. Even less is known about how it was obtained, and fitted on her. A long standing legend says she was once a beloved family mare. It is often told like this; "She had a great life. All the treats and love a horse could ask for. Her family consisted of an adult female, an adult male, and a young girl, maybe 8 or 9. The little girl was riding her mare in the woods. Her parents didn't know, as they were out shopping when she left. The ride was long and peaceful, though tragedy would soon strike. Near the end of the ride, a hungry bear caught scent of the young child and horse. It decided to pursue. The mare spooked and took off in a blinding gallop towards the house. The little girl did not have the strength to hold on, and fell near the end of the mare's bolt. She managed to get to the house, to find her parents roaming the pasture looking for her. When she greeted them, they embraced her, and proceeded to ask what happened to her arm, which was now full of cuts and badly bruised.She explained how her mare bolted, lying about the danger she ran from. She claimed her horse ran from a rabbit crossing the road. The girl's mother, shocked by the news, rushes over to the mare. She swiftly raised her hand and smacked the mare on the side of her muzzle. Hard. The crunch of fractured bones rippled through the air, although no one was sure if it was the mare's bone,  or the women's bone. The mare quickly and angrily swung her head around and bit the women's arm, slicing straight through the bone and flesh, severing the arm from her body. She was rushed to the hospital without her arm, as the mare refused to let go of her prize. When the family returned to the home, the father crafted a muzzle and harness for the mare. He equipped her with both. He used the harness to tie her to a strong redwood tree outside of the house. She was bound tight for weeks, or even months on end. During this time, she was not fed, and the only water she had was from the rain that poured down seldomly, and funneled in through the metal slats over her nostrils. More time passed, and one of her former friends visited her to sneak her a carrot. It was the little girl. She was upon the mare. A thud was heard from the dropped carrots, and then a bloodcurdling screamed shortly followed as she gazed upon her once beautiful horse. The sight she saw was not the mare she was once knew. There was a bloody rabbit carcass infront of the horse, and her muzzle was soaked in red, and dripping red. The rabbit's skull was smashed in, presumably by the bloody hoof of the mare. Her once beautiful auburn eyes have turned red, and her warm, friendly, rectangular pupil turned  round, cold, and evil. It became the eye of a killer. A hunter. Another scream was then heard. It was different though. No, not of a human. Something ugh more sinister. The world then turned a dark red, and bombs could be seen soaring overhead. The apocalypse has started. The family rushed to the bunker. The mare was left behind, to fend for herself, regardless of the plentiful space available in the room. Enough to accommodate five horses comfortably. They had plentiful time to untie her and bring her in before the danger started. This furthered the mares hatred and resentment for what has been done. She snapped her 6 inch thick leather tie with the slightest of ease, and rushed towards the bunker door. She wildly stamped at the wooden surface, trying with all her effort to get through. The bunker has been built for nuclear strike, the doors being 4 feet thick, with concrete reinforcements. Anger fueling the equine, she broke through the door. She killed the family with furious blows to the body and head with her hard untrimmed hooves. She showed no remorse. No one knows how she survived the nuclear war, or how she lived over a thousand years."

She is huge, at least double the size of a normal horse. She is black in colour, with very lightly placed dapples coating her body. They are a little stronger on her face. She has a rat tail, which will drag along the ground if she doesn't hold it up. She also boasts very soft, luxurious hair. Tufts of her hair, usually found on fences or trees, usually sell for hundreds, if not thousands. Her eyes are crimson red, with round pupils.