Hidden In The Mist

Frederick Dershel was a normal man, at least, until he was murdered and became a spirit of fog. Now, 129 years after his death, he was chosen to become a guardian. He isn't good with children, he isn't the most gracious of spirits, and the reason he was chosen remains shrouded in mist. But how will the guardians uncover the hidden enemy they must fight,when he doesn't want to help?