Read it through once

The lad was touched. He went towards her, and stooping down, he kissed her. “I am sorry if I have pained you by asking about my father,” he said, “but I could not help it. I must go now. Good-bye. Don’t forget that you will have only one child now to look after, and believe me that if this man wrongs my sister, I will find out who he is, track him down, and kill him like a dog. I swear it.”