The emperor retired to the adjacent hills; where he passed a disconsolate night, without sleep, without provisions, and without hopes; except that strong assurance, which, under the most desperate circumstances, the independent mind may derive from the contempt of fortune and of life.

The triumph of Eugenius was celebrated by the insolent and dissolute joy of his camp; whilst the active and vigilant Arbogastes secretly detached a considerable body of troops to occupy the passes of the mountains, and to encompass the rear of the Eastern army.

The dawn of day discovered to the eyes of Theodosius the extent and the extremity of his danger; but his apprehensions were soon dispelled, by a friendly message from the leaders of those troops who expressed their inclination to desert the standard of the tyrant.

The honorable and lucrative rewards, which they stipulated as the price of their perfidy, were granted without hesitation; and as ink and paper could not easily be procured, the emperor subscribed, on his own tablets, the ratification of the treaty.
The spirit of his soldiers was revived by this seasonable reenforcement; and they again marched, with confidence, to surprise the camp of a tyrant, whose principal officers appeared to distrust, either the justice or the success of his arms.

In the heat of the battle, a violent tempest, such as is often felt among the Alps, suddenly arose from the East.