Read the passage.

… It was the manner in which all this, and much more, was said—it was the apparent heart that went with his request—which allowed me no room for hesitation; and I accordingly obeyed forthwith what I still considered a very singular summons.

In this excerpt from Edgar Allan Poe’s “The Fall of the House of Usher,” what does this response to Usher’s letter reveal about the narrator’s character?