The Grey Wolf Louise Penny

In installment #19, a number of sinister things start happening: Gamache gets repeated calls he will not answer, one of his coats goes missing from his apartment, an intruder alarm with no evidence of an intruder, old friends act like enemies… and someone is killed. Gamache knows this is much bigger than a murder and that he, and his team must find the threat or the consequences will devastate not only Three Pines but also the country.