De geheime tegenstander (Agatha Christie)

The backdrop feels so vivid and reflective of its time. I'm curious whether Christie drew from real events or crafted this atmosphere from her imagination.

The dialogue really brought the story to life, but I wonder if Christie intended the humor to balance the suspense or if it was just her style.

The characters' backgrounds seem to influence their motivations and interactions. Did others feel this added depth or was it a subtle layer?