THE four gypsies left Herr Hippe's house cautiously, and directed their steps towards Mr. Pippel's bird-shop. Golosh Street was asleep. Nothing was stirring in that tenebrous slum, save a dog that savagely gnawed a bone which lay on a dust-heap, tantalizing him with the flavor of food without its substance. As the gypsies moved stealthily along in the darkness, they had a sinister and murderous air that would not have failed to attract the attention of the policeman of the quarter