Welcome to Walt Longmire’s worst type of problem. In Craig Johnson’s latest mystery, Depth of Winter, an international hit man and the head of one of the most vicious drug cartels in Mexico offers kidnapped Walt’s beloved girl, Cady, to auction her off to his worst enemies, which there are many. The American authorities is of limited help and the Mexican one also less. Walt minds into the one-hundred-and-ten level heat from the North Mexican desert only, one man against an military.