5. Fill in the summary

The poem revolves around a   who is on a journey alone, with only his   for company. He finds a lonely                 inside a   , and knocks the door under the   . The window sill is covered with  and the traveller does not get any response. A flies out of the tower as the horse grazes around. The traveller stands there    and knocks a second time. No one responds and looks into his   eyes. The traveller compares the silence to a group of   or ghosts as listeners. They stood listening to the traveller's call in the moonlight. down the   . They listened in the air  by the traveller's voice.