Love and Death in the City of Bone

Decades ago, we made our separate ways to the desert planet of Elard. We shared a common purpose: enlighten the planet's low-tech, violent aliens with our different paths of uplift. Though we served different ideals, we became friends... until our friendship dissolved into illicit affairs.
And an unexplained disappearance.
Now, I return to Elard.
Older, yes.
Wiser?
I hope.
I've got only thirty days to solve mysteries buried in the planet's vast desert. And reveal the hidden agenda of the only woman I ever loved.
A woman loyal to violent forces who'll do whatever it takes to stop me from finding the truth.
-Previously published as The ALECS Quartet by Raymund Eich