A lurcher with a secret

It's a character for a fan story in Era 2 I'm thinking of writng. If you look at his right hand it's translusent allowing you see the bone implying the presence of a Kandra. The Idea here is that as a child the character (Working name Caduel) lost his arm in factory work, soon after he found a very young kandra (though Caduel didn't know what it was at the time) only just learning to imitate flesh. With the Kadra's help Caduel has a working, living prosthesis. I want to use the story to create a mystery of who could be creating Kandra after the Catacendre, in addition explore the possblities of the powers offered by burning iron. I don't have a working name for the kandra yet, but I am how ever toying with idea of Caduel slowly discovering the kandra is fully aware, and for the kandra becoming somewhat of a little brother figure for Caduel.