face of a woman. This stone edifice was evidently a prison. I approached the window, and standing under it, first looking from side to side to see that no one was coming along the road, I said in Latin, 'I am free to go where I choose.'
"Then the voice above said, 'Wait!' but it spoke in Italian this time. You may be sure I waited, and in a few minutes a little package dropped from the window and fell almost at my feet. I stooped and picked it up. It was a piece of paper, in which was wrapped a bit of mortar to give it weight.
"I opened the paper and read, written in a clear and scholarly hand, these words: 'I am a most unfortunate prisoner. I believe you are an honest and true man, because I saw you studying plants and reading from a book which you carry. If you wish to do more good than you ever did before, come to this prison again after dark.'
"I looked up and said quickly, in Italian, 'I shall be here.' I was about to speak again and ask for some more definite directions, but I heard the sound of voices around
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