(Original Review, 1981-04-17)
“The Mysterious Stranger” by Mark Twain which presented a very bleak and troubling vision of humanity. It had some Huck Finn style youthful frolicking too but this was swamped by that sense that human history and the consequences of moral decision making are a horrible dream that the narrator may be able to escape from but we cannot. I was expecting some jolly progressive waffle about the stupidity of religion but the book went far deeper than that especially when Satan started compassionately bumping people off because he could foretell how awful their lives would be if he didn't.
If you're into stuff like this, you can read the full review.