The mood changes from a normal and mundane to cold and lifeless when the dementors attack. Dementors are soul eaters, when they kiss their victims, the soul of the victim is taken away. Without their soul, a victim of dementors will most likely have no love, no expression. They can’t ever get their soul back again. So, when the dementors attack in the alleyway, “The star-strewn indigo sky was suddenly pitch-black and lightless ---- the stars, the moon, the misty streetlamps on either end of the alley had vanished. The distant grumble of cars and the whisper of trees had gone. The balmy evening was suddenly piercingly, bitingly cold. They were surrounded by total, impenetrable, silent darkness, as though some giant hand had dropped a thick,
