Titanshade / Dan Stout.

Enhanced descriptions from Syndetics:

This noir fantasy thriller from a debut author introduces the gritty town of Titanshade, where danger lurks around every corner.

"Take a little Mickey Spillane, some Dashiell Hammet, a bit of Raymond Chandler, and mix it with Phillip K. Dick's Blade Runner ; add a taste of CJ Box, and Craig Johnson, and you've got a masterpiece of a first novel." --W. Michael Gear, New York Times bestselling author

Carter's a homicide cop in Titanshade, an oil boomtown where 8-tracks are state of the art, disco rules the radio, and all the best sorcerers wear designer labels. It's also a metropolis teetering on the edge of disaster. As its oil reserves run dry, the city's future hangs on a possible investment from the reclusive amphibians known as Squibs.

But now negotiations have been derailed by the horrific murder of a Squib diplomat. The pressure's never been higher to make a quick arrest, even as Carter's investigation leads him into conflict with the city's elite. Undermined by corrupt coworkers and falsified evidence, and with a suspect list that includes power-hungry politicians, oil magnates, and mad scientists, Carter must find the killer before the investigation turns into a witch-hunt and those closest to him pay the ultimate price on the filthy streets of Titanshade.