There are 5 books in the The Joshua Croft Mysteries series. The newest book is Accustomed to the Dark which came out in 1996.

In the first book of a “promising” Southwestern mystery series, a Santa Fe PI’s search for a stolen necklace leads to drugs, pornography, and murder (The New York Times Book Review).
 
As an associate at Santa Fe’s Mondragon Detective Agency, Joshua Croft has heard a lot of strange proposals. But…
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2
At Ease with the Dead

At Ease with the Dead
After saving an old Indian from bullies, private investigator Joshua Croft soon forgets the whole incident, but when Daniel Begay reappears seeking assistance in recovering the remains of a long-dead Navajo, Croft feels compelled to oblige

3
A Flower in the Desert

Book cover of A Flower in the Desert
When television star Roy Alonzo is accused by his ex-wife of sexually abusing their young daughter, Roy hires Santa Fe private investigator Joshua Croft to find mother and daughter, clear his name, and save his career. The trail leads from Beverly Hills to a commune in northern New Mexico, with…

4
The Hanged Man

The Hanged Man
At a meeting of thirteen of Santa Fe's leading New Age healers, Quentin Bouvier, a magician and possibly a reincarnated Egyptian pharaoh, has been hanged from the rafters. He outbid Leonard Quarry for astrologer Eliza Remington's antique tarot card and now he's dead and the tarot card is missing. The…

5
Accustomed to the Dark

Accustomed to the Dark
When Joshua Croft's partner and lover, Rita Mondragon, is nearly killed by a psychopath who had tried to kill her years before, Joshua vows to find the brutal killer and embarks on a vengeful quest that takes him all across the country