The shadow has confirmed that the boy named Aaron is truly its master, but it also knows that he has yet to become truly his master. Until then, he couldn't show himself, and so it hid itself, watching over the boy, but that soon became a bore.
After Aaron got the necklace, he left for the academy in a roundabout way. This was a way to create an alibi for himself regarding the changes that happened in the mist after the necklace was taken away from the place.
In that journey, Aaron met someone named Jay. Looking at that boy, the shadow was fascinated, especially when he saw Jay's eyes glow when he saw Aaron.
He knew that glow. The boy just saw the status of Aaron.
As a being that lived for a long time, he knew many secret and unique skills that exist in this world, that most of the world has no idea even exist.
