The way my brain connected the dots was she somehow implanted the idea of her creation into his mind and he crafted it or they crafted it together and she somehow made him forget. Regardless, they both injected some of their magic into it and were both technically the owner. I think if she left him alive, he would still have partial ownership of it and it would eventually distort her version of the world to seek him out.Wait so did which fairy created the cause of casualty???