The words appear across the screen like an obedient ticker tape, devoid of any sense of their speaker's emotion. If the reason for the question is nothing more than an effort to be distracting, Wrench seems oblivious to the point. He's just glad for something he feels a little bit equipped to answer, even if his response is mostly comprised of generalities.

Blood can be very powerful. Different blood types can do different things, and they're affected by the changes in town in different ways. But too much spilled blood can start to corrupt you. It turns your mind and body.

Well, that seems sufficiently terrifying, Wrench thinks to himself. As if to prove his warning, the boy's words echo some sense of wrongness, and he frowns. You mean just now, or since you got here?