[1] Julian, thinking that such actions, dangerous and dubious as they were, would break out into deadly mischief, directed all his thoughts to the one end of forcibly seizing Vadomarius while off his guard, in order to ensure his own safety and that of the provinces. And this was the plan that he formed.

[2] He had sent to those regions his secretary, Philagrius, later Count of the Orient, ¹ in whose good judgement he had confidence, having already tested it; and, in addition to many other orders which he was to execute according as urgent affairs might require, he also gave him a sealed note with orders neither to open nor read it unless he saw Vadomarius on our side of the Rhine.

[3] Philagrius went his way as ordered, and when he had arrived and was busy with sundry affairs, Vadomarius crossed the river, fearing nothing, as was natural in a time of profound peace, and pretending to know of no irregular doings. And on seeing the commander of the soldiers stationed there, he spoke briefly with him as usual; and in order to leave behind no suspicion on his departure, he even promised to come to a banquet of the commander’s to which Philagrius also was invited.

[4] The latter immediately upon entering and seeing the king recalled the words of his emperor, and offering as excuse some important and urgent piece of business, returned to his quarters; then, after reading the letter and learning what he was to do, he at once came back and took his place at table with the others.

[5] As soon as the feast was ended, he laid a strong hand on Vadomarius and handed him over to the commander of the soldiers, to be closely confined in camp, having read to him the text of his orders; the king’s companions he compelled to return to their homes, since no order touching them had been given.

[6] The aforesaid king, however, was taken to the camp of the prince, and though now without any hope of pardon, since he had learned that his secretary had been taken and that what he had written to Constantius was now generally known, without even being addressed in reproachful terms he was sent to Spain. For the greatest precaution was taken lest, when Julian should withdraw from Gaul, that most savage king should not lawlessly disturb the condition of the provinces, which had been put in order with difficulty.

[7] Although Julian was somewhat elated by this good fortune, in that the king, whom he dreaded when about to leave for far countries, had been apprehended sooner than he had expected, yet he did not at all relax his diligence, but planned an attack upon the savages who (as I have shown ² ) had slain the Count Libino and a few of his followers in battle.

[8] And in order that no rumour of his coming might lead them to flee to more distant places, he crossed the Rhine in the deep silence of night with the lightest equipped of his auxiliary forces and surrounded them while they feared nothing of the kind. And when they were awakened by the clash of hostile arms and were looking about for their swords and spears, he flew upon them swiftly; some he slew, others, who begged for mercy and offered booty, he received in surrender, to the rest who remained there he granted peace when they sued for it and promised lasting quiet.