A Great Reckoning by Louise Penny
I love Penny's Gamache series and this one was even better than the last couple. Gamache has taken the position of Commander of the Sûreté academy, the last bastion of the corruption that has plagues the Sûreté and a place to stop the corruption in its earliest stages, with the training of the cadets.
And of course, there's a murder. One of the professors is killed, and no one at the academy is above suspicion, including Gamache and the cadets. It's a very personal mystery for Gamache and a complicated situation. Is murder sometimes justifiable? Is anyone beyond redemption?\
As always, it's the characters the drive the mystery. With several trips to Three Pines and the homicide at the school, we meet most of the old familiar characters we know and love, but the new folks are well-drawn. The people here are real, even Gamache. They have strengths, but faults too, loyalties and habits.
There's also the mystery of the old map, why it was...