The most likely central idea of the given passage is that <u>Marlow believes he and his crew have literally time-traveled to the Stone Age.</u>
According to the given passage, the narrator talks about his journey with a group of people who were wanderers on a prehistoric earth and fancied themselves to be conquerors, taking possession of that place.
In Heart of Darkness is a story told about Marlow who journeyed to Congo, Africa and he has a twisted concept of reality where he believes he has literally gone with his crew to the Stone Age.
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Answer:
She had to stay anonymous before the truth came out.
Explanation:
 
        
                    
             
        
        
        
Literary nonfiction is the closest thing to a written document. Take for example you were in the Renaissance era, where new art, and theries, and styles were being developed. You, a young novelist, were to write about what you saw. This written piece that you've written can be used to change history. How? Because you can write about, how it was developed, how it was created, the smaller details that we overlook.
Try and picture yourself now. You see a new historic site being built. And you wrote about it. 200 years into the future an architecture found what you wrote and used it to help change the style of future buildings.
Bottom line... it helps change, impact and inform us of what we weren't able to see. 
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