'I am an evil spirit,' said the voice, 'shut up here till Doomsday, unless a man sets me free. If you will let me out I will give you some magic books, which will make you wiser than any other man.'
Now Virgilius loved wisdom, and was tempted by these promises, but again his prudence came to his aid, and he demanded that the books should be handed over to him first, and that he should be told how to use them. The evil spirit, unable to help itself, did as Virgilius bade him, and then the bolt was drawn back. Underneath was a small hole, and out of this the evil spirit gradually wriggled himself; but it took some time, for when at last he stood upon the ground he proved to be about three times as large as Virgilius himself, and coal black besides.
'Why, you can't have been as big as that when you were in the hole!' cried Virgilius.
'But I was!' replied the spirit.
'I don't believe it!' answered Virgilius.
'Well, I'll just get in and show you,' said the spirit, and after turning and twisting, and curling himself up, then he lay neatly packed into the hole. Then Virgilius drew the bolt, and, picking the books up under his arm, he left the cave.
For the next few weeks Virgilius hardly ate or slept, so busy was he in learning the magic the books contained. But at the end of that time a messenger from his mother arrived in Toledo, begging him to come at once to Rome, as she had been ill, and could look after their affairs no longer.
Though sorry to leave Toledo, where he was much thought of as showing promise of great learning, Virgilius would willingly have set out at once, but there were many things he had first to see to. So he entrusted to the messenger four pack-horses laden with precious things, and a white palfrey on which she was to ride out every day. Then he set about his own preparations, and, followed by a large train of scholars, he at length started
