How does the writer engage your interest and build up suspense in the pasage?

The writer manages to build up suspence through the main character’s actions and thoughts. He engage the readers’ interest basically by what the character says and his state ofmind.
The author makes suspence through the main character state of mind. At the very beggining of the passage the character presents himself as a very nervous person, but refusing onthe idea of being mad: ‘I heard all things in the heaven and in the earth. I heard many things in hell. How, then, am I mad? ‘ By this quotation we can clearly visualize his madness,and how the author manages to show it through what the character says. lso the fact that the old man’s eye was what bothers him, reclefts his madness: ‘(...) it was not the old manwho vexed me, but his Evil Eye’ In this case, the author through the character’s thoughts conveys his state of mind. On the other hand, according on what the character does, we cansee the point too: ‘And every night, about midnight, I turned the latch of his door and opened it – oh, so gently!’ The man acts according to what he thinks. Therefore we are able tosee his madness.
The narrator of the story is the main character, therefore he narrates according to what he feels:’Never before that night had I felt the extent of my own powers-of my sagacity.’ The way the story is narrated has a streight connection to who is telling it. Therefore if the suspence is created by the character, the story will be even moreinteresting narrated by him.
To conclude the paradox of the character, saying he is not mad, but in
fact doing something totally out of mind creats an special effect on the reader.The impact the reader gets when reading a story full of crazy connotations, because the narrator is the main character, is amazing. And that is what the reader finds more attrative.