The narrator arrives at the house of usher to his old friend in a time of illness. does he succeed in his purpose?

in my opinion, based on what little I have, yes.

No, he is not able to stop the madness that destroys Usher

Explanation:

As the narrator reads the text aloud, all the sounds from the fictional story can be heard resounding from below the mansion. It doesn't take long for Usher to freak out; he jumps up and declares that they buried Madeline alive and that now she is coming back. Sure enough, the doors blow open and there stands a trembling, bloody Madeline. She throws herself at Usher, who falls to the floor and, after "violent" agony, dies along with his sister. The narrator flees; outside he watches the House of Usher crack in two and sink into the dark, dank pool that lies before it

umm we do not your answer or what you are talking about

coin toss of the tosses to the toss