There were about five legendary creatures that lived around the Ashes Wood and surrounding area.
Snow Elephant King in the far north of Mountains of Barrenness; the Arctic Tyrant of Dragon-roar Town; the Skeleton Devourer in Peace Swamp; Shadow Devil; and Greg the Death Knight.
The first three had a fixed territory, but the latter two didn't. The Shadow Devil at least had a rough activity area, but the Death Knight had nothing; it went around the Ashes Wood without aim.
There was not only one adventurer that once got in touch with him, up close. Although the Death Knight was a death soul, it didn't possess the violent and ferocious qualities of a normal death soul. He only held his head, rode on his skeleton horse that only had bones, and murmured, "Who am I?" He asked these sort of philosophical questions all day.