This is the fourth book in the Chee/Leaphorn stories, I’m filling in a few books I missed when reading the series. Jim Chee has an offer to join the FBI which he is considering, or to continue his studies to become a Hataalii, a tribal medicine man.
There is a backstory of an explosion at a well logging event that killed a number of people. Years later a bomb explodes in a pickup as a tow driver is hooking it up for towing, the target was a man already dying from cancer. Then someone steels a keepsake box from a rich man, B. J. Vines, leaving many valuables that are in sight. Chee’s first involvement was when Mrs. Vines asked Chee to recover the box.
The People of Darkness are involved, somehow. This is a religious sect that worships the mole. It is not recognized by most Navajo for its use of peyote.
During his investigation, he finds himself and a woman, Mary Landon, who finds herself wandering with Chee during his investigations, the target of an assassin.
The locals believe Mr. Vines is a witch, Chee must find a solution that satisfies the local cultures and the white men.
The book is excellent and rich in Navajo culture.