Tell tale hearts

• Who wrote the tell-tale heart?

  Edgar Allan poe
• How does the narrator describe his own mental state throughout the story?

  Nervous but sane
• before the narrator murder the old man.

  8 nights
• What sound drives the narrator to confess the murder to the police?

  The old mans heartbeat
• What literary device is predominantly used to build suspense in the story?

  Repetition