1. What does Marlow mean when he refers to English explorers such as Sir John Franklin and Sir Francis Drake as the "Knights-errant of the sea"?
2. Why does Marlow refer to others who are working for the Company as "pilgrims," and what does that name seem to imply?
3. What's the significance of the book Marlow finds in the hut on his way up the river? A hint: although many online notes claim it's a fictional book, it actually does exist, and was a manual for making sure that the compass could be calibrated properly when aboard an iron boat.
4. Where -- specifically in what culture, in what person or persons, or in what aspect of what soul is the "heart of darkness" located?