"The Grand Duke Frederick Augustus is a very extraordinary man," continued M. Thierry, "able, well-educated, but a master of dissembling. Is he playing for his own hand? Or for that of the King of Würtemberg, his immediate suzerain? Or, indeed, for the Kaiser? I have studied this question from the point of view of German high politics. It isn't a simple one. Frederick Augustus is a man of ambition, and I don't think he would stop at anything." "Anyhow," I said, "his calculations have had to take account of the Grand Duchess Aurora. Her consent to marry him was an essential factor." M. Thierry smiled. "They might have been in collusion. I admit I don't know that side of the question. In fact, I know nothing of the Grand Duchess except her age," he said, taking up the blue and gold book again, "her Christian names--Aurora--Anna--Eleanor; her Russian origin, and that she was a Tumene princess. The Tumenes are the most powerful family in the Government of Astrakhan. Has she acted in collusion with the present Grand Duke? It is possible. You know as well as I that reasons of state sometimes dictate marriages, but, as I said, I know nothing about her." "All this does not seem very enlightening, but in any case, I can't see why a humble tutor should have to suffer for the intrigues of such high personages." "That sounds plausible, but how can you ever say what may result from these sordid affairs. You might find yourself drawn in without knowing it Do you know, in fact, exactly what your duties are? I will tell you what is really in my mind. Your salary is to be ten thousand marks, isn't it? I can't help thinking that figure is unduly high. Your friend Boubelet, with Normale and his _agrégation_ behind him had only eight thousand from the King of Saxony." I saw clearly that the old professor had some very definite reason for speaking in this way, but that fear of compromising himself prevented him from saying more. I admit it would have made no difference in any case. My curiosity was thoroughly aroused. The lust of adventure was kindled within me, and there was no hesitation about the tone in which I answered: "I am very much obliged, sir, for your kind warning but my mind is made up. By minding my own business and sticking to my own job, I think I can avoid any and every danger. You admit that it is by no means certain I am running any risk. Will you grant me one more favour?" "Certainly." "If anything ever strikes me as suspicious, I will write to you about it and ask your advice. Then will be the time ..." "Don't do any such thing, my young friend. You had better realize now that over there you will inevitably be surrounded by spies. Never write a letter you don't want the Grand Duke to read for you can be quite sure that if he wants to, he won't ask your permission. Once at Lautenburg you'll be absolutely isolated from the world. I know the palace. Its magnificence does not prevent it being more of a fortress than a château."