The Tall Man In The Trees

Looking through these depressing woods, I saw her. She was a girl of the age of 8 she had long raven black hair and pretty little blue eyes that contrasted against her ivory skin tone. She was like any other child happy, innocent, naive, and careless. But I couldn't out my finger one it what was it about her that made me not able to kill her but yet I could kill her brother. I have watched ever since that night wondering what was so special about her that would make me feel pity for that child and let her live.