I love mysteries set in WWI and one with a physiological aspect had to be read.
The damage of war is not always in the physical wounds but the emotional and mental wounds that were not understood by either the medical field or the friends and family at home. The author does a wonderful job of portraying this in the story and most especially in the main character of John Emmett.
The mystery wasn't stunning though it was an integral and vital part of the story. The conclusion of this story took far too long after finding out the answer to the mystery but it was a good book for the most part.