It is a novel #9 in the Armand Gamache series.
From http://www.gamacheseries.com/about/:
LOUISE PENNY is the #1 The New York Times and Globe and Mail bestselling author of twelve Chief Inspector Armand Gamache novels. She has been awarded the John Creasey Dagger, Nero, and Barry Awards, as well as two each of the Arthur Ellis, Macavity, and Dilys Awards. Additionally, Louise has won five Agatha Awards and five Anthony Awards. She lives in a small village south of Montréal. You can follow Louise on Facebook, find her on Goodreads, and visit her official website.
Book Time 