The title says it all. It's a very dark look at how humans can rationalize anything, but still struggle with their buried consciences. It's quite sobering to realize that all of the atrocities Conrad describes in HOD really occurred - he witnessed them when he was a steamboat captain in the Belgian Congo.
I actually got the idea to read this book while I was reading King Leopold's Ghost, which is a historical account of his (he was The king of Belgium) formation and rule over the Belgian Congo colony. In this book, it was explained how Joseph Conrad witnessed and corroborated the widespread atrocities the Belgian (and other European and American commissioners) committed on a routine basis. For me, that gave this book added impact - but it's also interesting to note that this story was used as the basic storyline for the film Apocalypse Now. Same scary trip up a river, even the name of the commissioner to be brought back by the boat captain was the same: Mr. Kurtz instead of Colonel Kurtz.
All that aside, HOD is a very dark look into the human psyche and worth reading on that basis alone. The fact that Conrad basically just described what he had himself witnessed certainly raises the importance of this book a hundredfold.



