The green torches grew into large arcs in the fog, landing on the roofs swinging end over end into the doorways of the houses and shops of the town.
The town was shimmering in bright lights. 
mnli hypothesis: The town was shimmering in bright lights.  premise: The green torches grew into large arcs in the fog, landing on the roofs swinging end over end into the doorways of the houses and shops of the town.