This is the first book I read this year that I didn't enjoy. The blurb on the back sounded like a good enough set up, but Conrad failed to deliver. It's a frame story, but the frame doesn't enhance the book at all. More than that, the so called "heart of darkness" isn't really that terrifying.
The main character takes a steam boat into then unexplored Africa in search of an ivory trader named Kurtz. Turns out Kurtz doesn't live up to his reputation as the ass-kicking, elephant-hunting, all-around frontiersman that Marlow, the protagonist, builds him up to be.
The book just kind of peters out and ends without a discernible climax. Thankfully it was only a shade over a hundred pages long.
Also, Conrad comes off as a bit of racist in his depiction of the Africans in this book. He doesn't seem to have a problem with poaching elephant tusks either.