What is the narrator point of view in the novel, The Unlikely Pilgrimage of Harold Fry?

The story is written in third person from limited perspectives. The majority of the story switches between Maureen's point of view and Harold's. This is necessary because the story is about the changes that take place in both of them. There is at least one brief scene in which the perspective switches to a less limited one. Rich talks to the group about the possibility of splitting up into two groups. He has this conversation while Harold is away and Kate argues with him over it. This seems to be necessary because it indicates that there are some people who have a different take on the situation than Harold, and that conversation can only reasonably take place outside Harold's hearing. This seems to be appropriate to the story, though the switching between the perspectives of Maureen and Harold make up the vast majority of the book.