When the city of Cyzicus withstood the utmost effort of Mithridates, it was distinguished by wise laws, a naval power of two hundred galleys, and three arsenals, of arms, of military engines, and of corn. It was still the seat of wealth and luxury; but of its ancient strength, nothing remained except the situation, in a little island of the Propontis, connected with the continent of Asia only by two bridges. From the recent sack of Prusa, the Goths advanced within eighteen miles of the city, which they had devoted to destruction; but the ruin of Cyzicus was delayed by a fortunate accident. The season was rainy, and the Lake Apolloniates, the reservoir of all the springs of Mount Olympus, rose to an uncommon height. The little river of Rhyndacus, which issues from the lake, swelled into a broad and rapid stream, and stopped the progress of the Goths. Their retreat to the maritime city of Heraclea, where the fleet had probably been stationed, was attended by a long train of wagons, laden with the spoils of Bithynia, and was marked by the flames of Nice and Nicomedia, which they wantonly burnt. Some obscure hints are mentioned of a doubtful combat that secured their retreat. But even a complete victory would have been of little moment, as the approach of the autumnal equinox summoned them to hasten their return. To navigate the Euxine before the month of May, or after that of September, is esteemed by the modern Turks the most unquestionable instance of rashness and folly.