After this there was nothing for Barry to do but put on his hat and follow Joe Hart. The boy had a start of three or four blocks, but Barry could see him passing under an electric light near the end of the Treasury Building. They went block after block until they reached the poorer section of the city on the outskirts of the railroad tracks. Presently Joe stopped at a fruit stand and began examining the stock of the Italian who presided over the place. In a few moments he had purchased a basketful of peaches, pears, and plums. At this stage of the pursuit Barry's better feelings came to the surface again and he resolved that he would follow Joe no farther. He turned off into a side street. Somehow or other he lost his way. Coming out of the other end of the street he almost ran face to face into Joe Hart. But the little page was so absorbed that he did not notice his friend. Joe walked up to a small, mean-looking house in the middle of the block, facing a large, vacant lot. Barry hid behind the trunk of a convenient tree. Joe rapped on the door and a poorly-clad, pale-faced woman responded. Her face brightened at the sight of Joe. "Good evening, Mrs. Lewis," cried Joe, in his cheeriest voice, "how are the children getting along tonight?" "They're better, thank God," she cried, fervently. "The doctor says that the crisis passed yesterday and they will be on the mend in a few days." "I'm mighty glad to hear it," said Joe. "It's very kind of you to come here," continued the woman; "and I'm sorry I can't ask you in." "Don't mention it. I'm a busy man, and haven't much time to spare. Here's a basket of fruit. Here's the prescription you wanted last night, too." "May Heaven bless you," cried the woman, the tears coming into her eyes. "I don't know how in the world I can ever repay you for your goodness to us." "Don't mention it," cried Joe, brusquely. "Here's a five-dollar bill. You may need it." "Oh," she said, "I can't really take this." "You must!" "But I won't be able to give it back to you." "Well," said Joe, with a laugh, "we'll put that up to Danny. We'll make Danny pay me when he gets better." And the next moment Joe had started off in the darkness. Barry came out from his hiding place. The woman saw him. "Are you looking for Joe?" "Yes; has he gone?" "Yes," she said, "he has just gone." And then, looking at him inquiringly, "Do you know him?" "Yes, ma'am; he's my chum." "Well," she said, "if you know him you know an angel in disguise. My Danny says that and Danny ought to know." "Danny?" said Barry, inquiringly.