Answer:
The author called the town quiet to build an element of surprise.
Step-by-step explanation:
Knowing what we know now, I would have left the town when given the warning. The reader is shocked when they find out an unassuming quiet little town could be so horrid. I think the reason why Bev, Ezze and Benji stayed behind was so they would be in-character and it was sensible considering the situation they were in.