A piece of literature

(Few words joined together to narrate an incident , I wrote this one while I was sitting in an local library. Rather than establishing the scenario I took a different approach and started from the middle.)

Their hopes shattered as soon as they got the glimpse of him.
He was emerged from the darkness.
They were too scared to move, the blood froze into the veins, their feet felt like they are buried deep into the ground impeding any movement.

He was moving with a slow pace like he could sniff the fear in air.
Earth shattered with each falling step of his making a thud. He was sliding his long weapon along the ground, they could see the sparks emerging from the point of impact. It was a giant blade with a handle covered with shiny skin which was glowing bright in the moon light.
His appearance remained mystery to them , until he was a feet away from them.
He covered his face with a black mask making it almost impossible to discern any facial features. He was over 7 feet tall , truly gigantic with heavy muscular built up.
His body covered with some kind of strange sleeveless robe. It was covered with blood, one could see it moving, flowing within the cloth, forming different pattern. His blade came piercing the air and slayed both of them in an instance. The blood splattered all over his robe, but rather than causing stains it blended into the cloth. And the robe was once again the same as it was before. And the he decended into the darkness once again.