How does huck avoid getting killed in the feud?

In the Adventures of Huckleberry Finn, chapters 17 and 18, Huck watches a feud progress between two families, the Grangerfords and Shepherdsons. At first Huck doesn't know much about it. He tells Buck, one of the Grangerfords, he's never heard of a feud. Huck asks Buck why he would want to kill someone who hasn't done anything to him.

By the end of this portion of the story, when many of the Grangerfords have been gunned down, Huck is disgusted by the feud. In narrating this part of the story, Huck says, "I don't want to talk much about [it]." He says it makes him "sick." As he finally gets away and gets back on the river with Jim, Huck says:

"I was powerful glad to get away from the feuds, and so was Jim to get away from the swamp. We said there warn't no home like a raft, after all. Other places do seem so cramped up and smothery, but a raft don't. You feel mighty free and easy and comfortable on a raft."