Luther waited, however, till the 20th. He and his Augsburg patrons began to suspect whether measures had not already been taken to detain him. They therefore had a small gate in the city wall opened in the night, and sent with him an escort well acquainted with the road. Thus he hastened away, as he himself described it, on a hard-trotting hack, in a simple monk's frock, with only knee-breeches, without boots or spurs, and unarmed. On the first day he rode eight miles, as far as the little town of Monheim. As he entered in the evening an inn and dismounted in the stable, he was unable to stand from fatigue, and fell down instantly among the straw. He travelled thus on horseback to Wittenberg, where he arrived well and joyful, on the anniversary of his ninety-five theses. He had heard on the way of the Pope's brief to Caietan, but he refused to think it could be genuine. His appeal, meanwhile, was delivered to the Cardinal at Augsburg, who had it posted by his notary on the doors of the cathedral. From Augsburg Luther was followed by a letter from Caietan to the Elector, full of bitter complaints against him. He had formed, he said, the highest hopes of his spiritual recovery, and had been grievously disappointed in him; the Elector, for his own honour and conscience' sake, must now either send him to Rome or, at least, expel him from his territory, since measures of fatherly kindness had failed to make him acknowledge his error. Frederick, after waiting four weeks, returned a quiet answer, showing how the conduct of Luther quite agreed with his own view of the matter. He would have expected that no recantation would have been required of Luther till the matter in dispute had been satisfactorily examined and explained. There were a number of learned men, also, at foreign universities, from whom he could not yet have learned with certainty that Luther's doctrine was unchristian; while, to say the least, it was chiefly those whose personal and financial interests were affected by it that had become his opponents. He would propose therefore that the judgment of several universities should be obtained, and have the matter disputed at a safe place. Luther, however, to whom the Elector showed this letter, at once declared himself ready to go into exile, but would not be deterred from publishing new declarations or taking further steps.