Marlow has heard positive comments about Kurtz, everyone believe Kurtz is a great man, for this reason Marlow start his journey to find Kurtz and see how great he is and what have he done. As the Story goes we learn about evil, Evil are the Europeans because they use and abuse the Africans for their own purpose but in reality they are in a journey to help them to become better, Europe doesn't know what is happening but mostly of them seek power.