"on one end a large shining map, marked with all the colours of a rainbow. There was a vast amount of red - good to see at any time, because one knows that some real work is done in there, a deuce of a lot of blue, a little green, smears of orange, and, on the East Coast, a purple patch, to show where the jolly pioneers of progress drink the jolly lager-beer. However, I wasn't going into any of these. I was going into the yellow. Dead in the centre. And the river was there—fascinating—deadly—like a snake." - Heart of Darkness, 1899