Magnus is quiet for some time, processing all of this, one piece of information at a time. "Thank you," he says, after a few moments. He loves Galahad with every fiber of his being, but has to admit that Galahad isn't exactly Extreme Detail Guy, and so it's helpful to have it all laid out like this, because Magnus definitely drew some incorrect conclusions from the information he did have. The specific nature of the blood's use, for example. "I didn't know all of that."