treading lightly , i channeled callum and wrote a polite but pointed reply-one that said that shay 's wolf had trespassed on my territory , that he 'd been out of control of his shift , and that i 'd gladly send the trespasser back shay 's way as soon as i determined whether he 'd been acting on his own agenda or someone else 's , and assured myself that he would n't be a future threat .