"I need help badly enough, but I don't see what you could do. However, I will tell you why I am in New York."
In a few words he told the story of his sister's abduction. When he explained why he had left the depot so suddenly his companion interrupted him.
"Why," he cried, excitedly, "I saw the cab that you wanted to follow! I can tell you just where you can find its driver, too."
"You can?"
"Yes. As it happens, he is an old friend of mine, and there isn't much that he won't do for me. He drives for a stable up on Fifth Avenue, but he ought to be home by this time. I can get a good deal more information out of him than they would give you if you went up to the stables. Do you want to go round to his house with me now and see if he is in?"
"Is it far from here?"
"Not ten minutes' walk."
"Let us go, then. But, perhaps, we ought to go to a police station first."
"We shall pass one on our way there. Come on; I'll bet that you won't be sorry you met me."
Within five minutes Al had given a description of his sister to the police, and an alarm was about to be sent out when he left the station.