This is not the brutal story "The Panopticon" is, but then "The Sunlight Pilgrims is not as powerful either.
There are similarities, as with teenagers being a focus of each novel, but 'Sunlight' does not feel rushed and the temperatures keep getting lower and lower.
I would have liked to know more about Constance and her back-story, but I quibble.
Don't let the apocalypse/global warming backdrop dissuade you from trying this book. Nor, if "The Panopticon" was not to your liking. This story is about three people and takes place during a very brutal winter in a small place in Scotland.