The Elbow Room

Noah the Dogboy hears the report of gunfire. He begins to smell the air. His nose is keen from long periods of time spent as a zombie. He can smell gundpowder, a quarter mile away. He begins to run in that direction awkwardly on all fours. As he gets near he smells cigarette smoke. He crawls up onto the rooftop and finds where the smell is strongest. Someone had smoked here and they'd left...that way. Noah follows the trail of cigarrette scent. He found where the person had stopped smoking, but the scent that lingered in his clothes remained to guide Noah. He was on the mystery person's trail.