The Dark Wind: 09/11/13
The Dark Wind by Tony Hillerman is is the fifth of the Navajo Mysteries. While Joe Leaphorn is tracking down missing jewelry from a local trading post, Jim Chee is on the stakeout for someone who is sabotaging a windmill.
Chee's primary case is put on back burner when he witnesses a plan crash. While he believes it's a drug run gone awry but the drugs are missing from the plane. Meanwhile, the sabotaging continues.
As with every Hillerman mystery I've read, Chee's case and Leaphorn's case intersect. While Chee's investigation takes him into a juridictional mess of Federal, Navajo and Hopi lands — Leaphorn listens patiently to the stories around the Trading Post (which invariably seem to come down to witch craft being blamed).
An observant reader will be able to piece together the bits and pieces into a coherent story and the solution to the mysteries.