The story starts out as a fairly conventional adventure at sea, but it becomes increasingly strange and hard to classify. Poe, who intended to present a realistic story, was inspired by several real-life accounts of sea voyages, and drew heavily from Jeremiah N. Reynolds and referenced the Hollow Earth theory. He also drew from his own experiences at sea. Analyses of the novel often focus on the potential autobiographical elements as well as its portrayal of race and the symbolism in the final lines of the work.