7. For, as is often the case in times of uncertainty and difficulty, they were panic-stricken by the incursion of our cavalry on the one side, and the sudden attacks of our infantry, conveyed in boats, on the other; and therefore, relying on their knowledge of the country, they sought safety in the rapidity of their flight; and, as their retreat left the motions of our troops free, we plundered the wealthy farms of their crops and their cattle, sparing no one. And having carried off a number of prisoners, we set fire to, and burnt to the ground all their houses, which in that district were built more carefully than usual, in the Roman fashion. 8. And when we had penetrated a distance of ten miles, till we came near a wood terrible from the denseness of its shade, our army halted for a while, and stayed its advance, having learnt from information given by a deserter that a number of enemies were concealed in some subterranean passages and caverns with many entrances in the neighbourhood, ready to sally forth when a favourable opportunity should appear. 9. Nevertheless our men presently ventured to advance in full confidence, and found the roads blockaded by oaks, ashes, and pines, of great size, cut down and laid together. And so they retreated with caution, perceiving that it was impossible to advance except by long and rugged defiles; though they could hardly restrain their indignation at being compelled to do so. 10. The weather too became very severe, so that they were enveloped in all kinds of toil and danger to no purpose (forasmuch as it was now past the autumnal equinox, and the snow, which had already fallen in those regions, covered the mountains and the plains), and so, instead of proceeding, Julian undertook a work worthy of being related. 11. He repaired with great expedition, while there was no one to hinder him, the fortress which Trajan had constructed in the territory of the Allemanni, and to which he had given his own name, and which had lately been attacked with great violence and almost destroyed. And he placed there a temporary garrison, and also some magazines, which he had collected from the barbarians. 12. But when the Allemanni saw these preparations made for their destruction, they assembled rapidly in great consternation at what had already been done, and sent ambassadors to implore peace, with prayers of extreme humility. And the Cæsar, now that he had fully matured and secured the success of all his designs, taking into consideration all probabilities, granted them a truce for ten months. In reality he was especially influenced by this prudent consideration, that the camp which he had thus occupied without hindrance, in a way that could hardly have been hoped for, required, nevertheless, to be fortified with mural engines and other adequate equipments.