[He pushes a breath through his nose in a huff. Kate and Shadow both, both of them wanting to know how things work and demanding explanations. With the beginnings of a wicked headache welling behind his eyes, he mutters out an answer.]

You'd have to ask her how they work. I'm a healer, not an enchanter. All I do is channel into them, like I channeled into you. You do remember that, don't you?