The bottoms - Joe R. Lansdale

The Great Depression, East Texas. The woods are thick, the rivers wild, the weather ripe with tornadoes, and the Crane family, like most families in that neck of the woods, are eking out a thin living. When young Harry Crane discovers a mutilated body bound to a tree with barbed wire in the river bottoms, the underbelly of East Texas is exposed. Whites fear a renegade Negro. Blacks fear a vengeful massacre, or, if the killer is white, that the law will let him slip through its fingers. Harry believes the murderer is the Goat Man, an East Texas monster of legend who lurks beneath the swing bridge on the Sabine River, like the Billy Goat Gruff. Harry and his sister have actually seen the Goat Man, or something much like him, in his nocturnal haunts. As the bodies mount up, an elderly black man is lynched, both blacks and whites are terrorised, and Harry's father - the local law - and grandmother investigate, searching for a killer who may be a lot closer than they think.