What is it about Bartleby that so intrigues and fascinates the narrator? Why does the narrator continue to feel a moral obligation to an employee who refuses to work and curtly rejects kind offers of help?

The narrator is intrigued and fascinated by the fact that he can't get Barnaby to do anything... nothing at all. The narrator feels a moral obligation to Barnaby because he wants to help him. He percieves his loneliness and isolation and tries to understand it, though he both pitys and is sickened by Barbaby's behavior.