Rabbi Lion, of the ancient city of Prague, sat in his study in the Ghetto looking very troubled. Through the window he could see the River Moldau with the narrow streets of the Jewish quarter clustered around the cemetery, which still stands to-day, and where is to be seen this famous man's tomb. Beyond the Ghetto rose the towers and spires of the city, but just at that moment it was not the cruelty of the people to the Jews that occupied the rabbi's thoughts. He was unable to find a servant, even one to attend the fire on the Sabbath for him. The truth was that the people were a little afraid of the rabbi. He was a very learned man, wise and studious, and a scientist; and because he did wonderful things people called him a magician. His experiments in chemistry frightened them. Late at nights they saw little spurts of blue and red flame shine from his window, and they said that demons and witches came at his beck and call. So nobody would enter his service. "If, as they d