Owl is a loner, once a member of Mountainclan. He was born with a curse; every time he did something bad, a part of his fur turned black. Once all black, he would turn completely evil. The medicine cat Snowytail received a prophecy about this, and warned the clan. Owl lived with the clan till he was an apprentice. They taught him how to hunt, and fight, then banned him from the clan, for he would harm them if he stayed. Owl suddenly lashed out and striked a warrior with his paw in his anger. A black spot appeared on his tail. Owl then ran away into the woods. There, he joined a group of rogues who took care of him. He did a lot of bad things. He realized this, and tried to stop. But the other rogues told him to not worry. He is in the middle, trying to tame his soul, before he becomes evil...
This is the third story in 'Fighting The Evil Within' series.