Don't tell me what will and won't be necessary! [ He, at least, allows the young man to pull his arm back. This isn't really the time or place for him to be able to dissect the young man. ]

Why can't you use your arm? You're born that way? [ Holding his chin, he wonders what that means as he looks over the map. Thunderland feels emotionally renewed in seeing such an odd specimen. Physically, he's still exhausted. But he, at least, is able to figure out what he can do. ] To get to a safer location, we should head down this stream... there should be a cave close-by.