A Haunting in the Arctic

The icy landscape adds a chilling backdrop to the story, but I wonder if the setting was chosen for its symbolic isolation or for practical reasons in the plot.

I’m curious whether the ghostly aspects were meant to be real or a manifestation of the characters’ minds. What did others think about the ambiguity?

The shifting timelines added layers of mystery, but I wonder if that was planned from the start or developed during the writing process.