These two books, The Dark Wind and The Ghostway, are the 5th and 6th books in the longstanding series of Hillerman's work.  And, a really cool addition to this package is Tony Hillerman's Indian Country Map and Guide.  I have taken pictures of each foldout and one photo of the map totally unfolded. It's incredibly interesting whether you read the books or not, of course this map will really bring the two books alive as you'll be able to see the exact locations and all the details surrounding events and will truly add a dimension to these books that the reader will benefit a great deal from.  Obviously the price I'm asking takes into account all three items.