Bump again, two years later. I like the way this ends. The murderer casts off the cloak for fear of what it will do next, and so it goes, another magic item "lost"...waiting again to be found, so it can "embrace" once more.
"Unbeknownst to anyone, the mage watched the birth through the windows of the miller's home, and when Thenadore arrived his soul probed the young newborn for a shelter and a host in the years to come. Curious, the innocent soul of Thenadore accepted, and in the last seven years they have co-existed in a symbiotic and benevolent partnership."
Teenagers who run away from home to live in the wilderness may become feral. As they become more and more feral, they gain some supernatural powers (a la Peter Pan - ability to fly, things they imagine come true - possibly quite powerful), but at the expense of their humanity and ability to speak, comprehend complex subjects, etc. Maybe they have a leader: the most feral of them all.