Even as the title itself suggests the intent of the writer in describing the darkness of more than one kind, Joseph Conrad's novella goes beyond portraying the harsh rainforests of Congo or the morbid depths of human psyche or even the tyranny of imperialistic rule.
What was most impressive about the book was how Conrad explores and describes situations and experiences in the Heart of Darkness that is Africa. His contemplation on the cannibals' restraint in a certain episode or his narration of the sighting of the wild primeval men and his appreciation of their raw humanity like yours and mine or his facetious comments on high-handed Imperialism or describing Kurtz's 'Intended''s mourning a year later - an entire gamut of human expression is traversed.
One of the most striking features of this book is how the author describes the life-like quality of the wilderness and the almost phantasmagorical description of his crew's trip down the Congo river into the true Heart of Darkness.
Apart from a plot narration that swings to and fro in a pleasing manner, the author is able to address the reader's qualms about certain of his assertions through characters who interrupt his narration that happens in the surreal setting of the Thames that Conrad so beautifully describes.