Five minutes later the door slammed and Joe had disappeared. At the same moment Mrs. Johnson came to Barry.

"I overheard your conversation, and it has distressed me more than I can explain. I feel more than ever that it is necessary to find out what this boy is doing with his money and where he spends his nights."

Barry looked at her helplessly.

"I don't see how I can help you, Mrs. Johnson."

Her eyes sparkled.

"Yes, you do. I have made up my mind that I will look after him and I have also made up my mind that you are going to help me."

Barry laughed, feebly.

"Well, if that's the case," he said, "I guess I might as well take my orders."

"Well, I want you to go after him right away. Don't let him see you, but find out what he does with that money."