IV. As always happens during a long siege, where there are frequent opportunities of intercourse between the two parties, one of the Romans had become intimate with a citizen of Veii, who was learned in legendary lore, and was even thought to have supernatural sources of information. When this man heard of the overflowing of the lake, his Roman friend observed that he was overjoyed, and laughed at the idea of the siege being successful. The Roman told him that these were not the only portents which troubled the Romans at the present time, but that there were others stranger than this, about which he should like to consult him, and, if possible, save himself in the common ruin of his country. The man eagerly attended to his discourse, imagining that he was about to hear some great secrets. The Roman thus decoyed him away farther and farther from the city gate, when he suddenly seized him and lifted him from the ground. Being the stronger man, and being assisted by several soldiers from the camp, he overpowered him, and brought him before the generals. Here the man, seeing that there was no escape, and that no one can resist his destiny, told them of the ancient oracles about his city, how it could not be taken until its enemies drove back the waters of the Alban lake, and prevented its joining the sea. When the senate heard this they were at a loss what to do, and determined to send an embassy to Delphi to enquire of the God. The embassy consisted of men of mark and importance, being Licinius Cossus, Valerius Potitus, and Fabius Ambustus. After a prosperous journey they returned with a response from Apollo, pointing out certain ceremonies which had been neglected in the feast of the Latin games, and bidding them, if possible, force the waters of the Alban lake away from the sea into its ancient course, or, if this could not be done, to divide the stream by canals and watercourses, and so to expend it in the plain. When the answer was brought back, the priests took the necessary steps about the sacrifices, while the people turned their attention to the diversion of the water.