This series completely deviates from Hillerman’s books. Chee did not work undercover for the FBI in the books. In the first episode Chee says he does not know the Navajo language but also says he had learned some Navajo ceremonies from his uncle. One can’t do that without knowing the language.The writers seem to think that all the wrongs suffered by native Americans should have also been suffered by Leaphorn and his wife (sterilization and Indian school). The series is a great disappointment.