"Child of God" was pretty tough to get through. There were moments of such absurdity that I had to laugh despite some of the grossness (you probably can guess what I am talking about).
I had to put Child of God down for two years and come back to it. I was surprised to see how disturbed I was at Lester's depravity, especially since I enjoy stories that examine the darker side of human nature. I was glad to have gone back and finished it though.