Taken from the story itself, with no dialogue:
A large portal of darkness swirled into existence. The group saw two, glowing red eyes stare down at them. Out of the darkness appeared a colossal figure. Isa thought it was about the size of a three or four-story building. everyone's eyes widened as they saw what stood before them. The being had a large, muscular frame. Black fur, blacker than ebony, covered the monster from head to toe.

It stood on two legs, and had a furry wolf tail. It's large, bulky chest heaved up and down with each breath it took. It's head had two, blood-red eyes and two, dark-brown, curving horns. Large, leathery, black bat wings poked out of the creature's back; a talon was set near the top of the wing.

The figure looked like a werewolf mixed with a dragon. It grinned. Large, sharp bloodstained canine teeth glistened with drool as it exhaled. The group choked on the thick smell of blood in the creature's breath.

I know it has some spelling errors. I didn't notice them at the time, though. Isa is Isamu, the online story's main character.