Read the excerpt from poe’s "the fall of the house of usher." i dared not -- oh, pity me, miserable wretch that i am! -- i dared not -- i dared not speak! we have put her living in the tomb! said i not that my senses were acute? i now tell you that i heard her first feeble movements in the hollow coffin. i heard them -- many, many days ago -- yet i dare not -- i dared not speak! what is the effect of parallelism in this excerpt?