"Old Ben said you wished to see me," replied Jack, and then he caught sight of Dr. Mackey and his face fell. "The man I had the row with," he thought.

"Jack, this is Dr. Mackey," said Mrs. Ruthven, in strained tones. "He—he came here to see you." She could get no further.

"To see me? What for?"

"My boy, I am pleased to meet you," said the doctor, rising and extending his hand. And he then added in a lower voice, "How like Walter! How very like Walter!"

"I—I don't understand you," stammered Jack. "What do you want of me?"

"My boy, you are thinking of that encounter we had on the bridge. Let us both forget it. I came here on a most important mission. Jack, I am your father!"

"My father?" And our hero leaped back in astonishment.

"Yes, my son, I am your father." Dr. Mackey caught our hero by the hand. "No doubt the news seems strange to you. Nevertheless, it is true."

Jack hardly heard the latter words, for his head was in a swim. This crafty-looking, overbearing individual his parent? The shock was an awful one. He turned to his foster mother.

"Mother, is this true—is this man my real father?" he cried beseechingly.