Tavernake paid his bill without another word. Downstairs the lights had been lowered, the party at the round table were already upon their feet.

“Good-night, professor!” he said. “I am going to see the last of Beatrice from the top of the stairs.”

The professor followed him—they stood there and watched her depart with Annie Legarde. The two girls got into a taxicab together, and Tavernake breathed a sigh of relief, a relief for which he was wholly unable to account, when he saw that Grier made no effort to follow them. As soon as the taxi had rolled away, they descended and passed into the street. Then the professor suddenly changed his tone.

“Mr. Tavernake,” he said, “I know what you are thinking about me: I am a weak old man who drinks too much and who wasn't born altogether honest. I can't give up anything. I'd be happier, really happier, on a crust with Beatrice, but I daren't, I simply daren't try it. I prefer the flesh pots with Elizabeth, and you despise me for it. I don't blame you, Mr. Tavernake, but listen.”

“Well?” Tavernake interjected.

The professor's fingers gripped his arm.

“You've known Beatrice longer—you don't know Elizabeth very well, but let me tell you this. Elizabeth is a very wonderful person. I know something about character, I know something about those hidden powers which men and women possess—strange powers which no one can understand, powers which drag a man to a woman's feet, or which make him shiver when he passes another even in a crowd. You see, these things are a science with me, Mr. Tavernake, but I don't pretend to understand everything. All I know is that Elizabeth is one of those people who can just do what she likes with men. I am her father and I am her slave. I tell myself that I would rather be with Beatrice, and I am as powerless to go as though I were bound with chains. You are a young ignorant man, Mr. Tavernake, you know nothing of life, and I will give you a word of warning. It is better for you that you keep away from over there.”

He raised one hand and pointed across the street towards the Milan Court; with the other he once more gripped Tavernake's arm.

“Why she should take the trouble even to speak with you for a moment, I do not know,” the professor continued, “but she does. It has pleased her to talk with you—why I can't imagine—only if I were you I would get away while there is yet time. She is my daughter but she has no heart, no pity. I saw her smile at you. I am sorry always for the man she smiles upon like that. Goodnight, Mr. Tavernake!”

The professor crossed the street. Tavernake watched him until he was out of sight. Then he felt an arm thrust through his.