How does the setting and point of view in C.S. Lewis The Lion The Witch and The Wardrobe affect the plot?

The setting in C.S. Lewis' 'The Lion, The Witch and The Wardrobe,' takes place during the World War II blitz of London. The children have been evacuated to a large, unfamiliar house in the English countryside for safety, so are already taken away from what is familiar to them. In the strange new home, the children explore their surroundings and discover the portal to Narnia. The third person point of view allows the narrator to describe the characters' feelings and motivations throughout the story.