Rulers of Kings by Gertrude Atherton

The Princess Sarolta, apparently absorbed in the achievements of the chef of Királyi Palota and the lively conversation about her, observed her imperial charge and pondered. It was the first time that Ranata had played the part of independent hostess beyond the limits of her small court and the few privileged friends, and the Princess was not surprised at her sudden blossoming into a graceful, almost informal, hostess, with a word of personal meaning for each of her guests as she greeted them, and an animation at table which a keen sense of liberty and her desire for popularity had finally set free. But what puzzled and faintly alarmed the valiant but suspicious soul of the Obersthofmeisterin was her exceeding graciousness to the brother of her American friend.

The Archduchess had lifted her chin coquettishly as he bowed formally before her, and then offered him her hand with a spontaneous warmth as she made known her wholly feminine and unroyal pleasure in meeting the brother of her dearest friend. To the handshake and the remarks the Princess had no particular objection -- there was fitness in both; but why the blush and the coquetry? Why the curiously puzzled expression of Mr. Abbott, followed by a flash of relief and pleasure? Why the constant change of expression as she turned from Prince Illehazy who sat on her right to the American who sat on her left? The Princess was abnormally acute in the ways of her sex, and with age she added to the sum of a knowledge born of much experience, while forgetting nothing. It was towards the middle of the dinner that her alarm faded, and she remarked to herself: "She is up to some game or other. She is playing a part. But what an actress!