Note the hero's mood of doubt and despair. At what point in his quest
do we see him? What does he do after meeting the cripple? How does the
landscape seem as he goes on? What _moral_ quality does it seem
to have? See lines 56-75. What new elements are introduced to add to
the horror of the scene? What memories come to him of the failures of
his friends? Was their disgrace in physical or moral failure? How does
he come to find the Tower? Why does Browning represent it as a "dark
tower"? Does his courage fail at the end of his quest? Or does he win
the victory in finding the tower and blowing the challenge?