But before the details of the all-important interview could be arranged there was much to be done; in particular, Austria must be held in check. An English vessel had arrived at Triest with a deputation of Spanish insurgents who offered the throne of their country to the Archduke Charles. The armaments of Francis grew stronger day by day. No one could hold the Hapsburg empire in check except the Czar. Even amid the exhausting labors of Bayonne, Napoleon remembered this, and thought of the East, reorganizing his fleet in preparation for cooeperation with that of Russia, and commanding reports to be made on the geography and military history of Persia. After the loss of Baylen, of which he learned in the first days of August, his ingenuity did not desert him, in spite of his heavy heart. A swift courier was despatched on the fifth, with a letter dated back to July twenty-first, and written as if in ignorance of events in Spain. He was enjoined to outrun the ordinary news-carriers, in order that, reaching St. Petersburg before them, he might present as an offering of friendship to Alexander the promise of a virtual evacuation of Prussia--even, in certain contingencies, of Warsaw. Twenty-four hours later another messenger was despatched, conveying the bad news in the mildest form, and expressing as the Emperor's greatest concern a hope that the Russian squadron which had been sent to Lisbon would escape, as he had reassuring news from its commander. It mattered not to him that this was untrue; the end was gained, and the real significance of Baylen was thereby largely concealed from the Czar, or at least the impression made on him by the news was weakened. Waiting for these communications to produce their effect, the Emperor forwarded a formal remonstrance to Vienna, in his own name, against Austria's warlike attitude, and two weeks later categorically demanded a similar step from the Czar, opening out once more the vista of indefinite aggrandizement for Russia in the East if only the European conflagration were not rekindled. The Czar was charmed by the promises of Napoleon, but when it came to a menacing remonstrance with Austria he hesitated. The anti-French party in Russia were now repeating, like parrots, first, Spain is annihilated, then Austria, then we ourselves. Moreover, as Alexander himself felt, arrangements like those of Tilsit are but too easily overset by unforeseen circumstances, and in such an event what would Europe be without the Hapsburgs? In the end a feeble hint, backed up by a weak menace, was sent to Vienna. Peace, wrote the Czar, is the best policy for Austria. "May not the peace of Tilsit, which I made, carry some obligations with it?" The warning produced a momentary impression in the city on the Danube.[26] [Footnote 26: See Vandal, Vol. I, Chapitre Preliminaire.]