Carefully, he mouths the words to a small spell, a sort of trick. He has used it on shadowruns many times. It has many uses. Now he uses it to erect a kind of shield around Shell, so she will not feel him moving, hear him rising from the couch, or stepping carefully across the room. He does not wish to disturb her. She has problems enough of her own and would be troubled if she got the idea that something was troubling him.