When gulliver went to Glubbdubdrib which was a magic island . He found that the governor was served by the spirits. The governor told gulliver that he had the power of calling up any spirit and ask him to serve for 24 hours , but the same spirit could not be recalled for 3 months . The governor offered gulliver to ask him to call any spirit he chose to call upon the spirit of Alexander the great , who assures him he had died of excessive drinking . He saw many other spirits like General hannibal , The ghost of Aristotle and the modern king of europe .