Macdonald closed the door behind them, then strode frowning up and down the room. The fear was growing on him that for all his great driving power he could not shake this slim girl from the view to which she clung. If the situation had not been so serious, it would have struck him as ridiculous. His relation with Meteetse had been natural enough. He believed that he had acted very honorably to her. Many a man would have left her in the lurch to take care of the youngster by herself. But he had acknowledged his obligation. He was paying his debt scrupulously, and because of it the story had risen to confront him. He felt that it was an unjust blow of fate. Punishment was falling upon him, not for what he had done, but because he had scorned to make a secret of it. He knew that he must justify himself before Sheba or lose her. As she stood in the dusk so tall and rigid, he knew her heart was steel to him. Her finely chiseled face had the look of race. Never had the spell of her been more upon him. He crushed back a keen-edged desire to take her supple young body into his arms and kiss her till the scarlet ran into her cheeks like splashes of wine. "You haven't the proper slant on this, Sheba. Alaska is the last frontier. It's the dropping-off place. You're north of fifty-three." "Am I north of the Ten Commandments?" she demanded with the inexorable judgment of youth. "Did you leave the moral code at home when you came in over the ice?" He smiled a little. "Morality is the average conduct of the average man at a given time and place. It is based on custom and expediency. The rules made for Drogheda won't fit Dawson or Nome. The laws made to protect young women in Ireland would be absurd if applied to half-breed squaws in Alaska. Meteetse does not hold herself disgraced but honored. She counts her boy far superior to the other youngsters of the village, and he is so considered by the tribe. I am told she lords it over her sisters." A faint flush of anger had crept into her cheeks. "Your view of morality puts us on a level with the animals. I will not discuss the subject, if you please." "We must discuss it. I must get you to see that Meteetse and what she stood for in my life have nothing to do with us. They belong to my past. She doesn't exist for either of us--isn't in any way a part of my present or future." "She exists for me," answered Sheba listlessly. She felt suddenly old and weary. "But I can't talk about it. Please go. I want to be alone." Again Macdonald paced restlessly down the room and back. He moved with a long, easy, tireless stride. The man was one among ten thousand, dominant, virile, every ounce of him strong as tested steel. But he felt as if all his energy were caged. "Why don't you go?" the girl pleaded. "It's no use to stay." He stopped in front of her. "I'm going to marry you, Sheba. Don't think I'll let that meddler interfere with our happiness. You're mine."