“Yes. I am going away to college in September. Jack and I, both of us are going to study to be doctors.”

“Well, I don’t know about your friend Jack, but I think you ought to study to be a detective.”

“Then I guessed?” cried Paul.

“You certainly did,” was the answer. “And let’s walk away before someone sees us. You go first and wait for me at the end of the street.”

Paul obeyed. He sprinted across the yard and over the fence and walked away. Two minutes later, Captain Bob joined him and he related to the old man his experience of that night and how he had already walked off and then returned. “I thought for a while that the hunch was a very poor one,” he concluded.

“No,” answered the captain. “On the contrary, it was a most logical one. Have you done any more investigations along this line?”

Paul became wary. He realized that again Captain Bob was trying to elicit information from him. He shook his head. “Not much,” was his answer.

“Well, just keep it up. Perhaps if we continue we may yet catch the culprit.”

“I hope so,” remarked Paul.

Soon after they separated, Captain Bob saying that he was going home and Paul seriously intended to do the same. In front of his own home, he paused and leaned against the gate. Ken crossed the street and came up to him. “Say, where have you been all evening?” inquired the latter.