There's two ways that I enjoyed this novel. 
 The first was the racism angle and the happy ending despite all the horrible things that happen in this tale and against blacks in good-ole-boy country in 50's 'murica. Racism, enslavement on multiple levels, the desire to try on another skin, all of it was both a repudiation of fantasy and pulp fiction's other skewed-ness way from black heroes. This novel dealt with the issues head-on and I liked it. :) 
 The second was how the novel was also a huge sample-dish of horror tropes, a love story to cultists, sorcerers, well-researched secret societies, evil doll tropes, tentacles, paranoia, haunted houses, and so much more. The author knows his shit. Lovecraft? Sure, but think of a slightly milder take, not quite attempting to draw us deeper and deeper into the depths of awe-turned-horror, but skipping us across strangeness to strangeness across the entire tale, sampling a bit of each dish while focusing more on character-journeys that don't quite make them go insane or get pulled into other dimensions or get eaten by non-euclidian geometries. 
 This is an anti-racist funhouse of horrors. :) 
 Of course, if you are subject to racism, yourself, you might just fall into this tale and call it a novel of pure horror, but at least you can rest assured that there will be a happy ending. :)