The prayers and sacrifices of the Romans had failed to check the flood, which threatened their city and fields, and despairing of any redress from their own gods they sent to Delphi, in Greece, and applied there to the famous oracle of Apollo. While the messengers were on their way, it chanced that a Roman centurion talked with an old Veientian on the walls whom he had known in times of peace, and knew to be skilled in the secrets of Fate. The Roman condoled with his friend, and hoped that no harm would come to him in the fall of Veii, sure to happen soon. The old man laughed in reply, and said,—
"You think, then, to take Veii. You shall not take it till the waters of the Lake of Alba are all spent, and flow out into the sea no more."
This remark troubled the Roman, who knew the prophetic foresight of his friend. The next day he talked with him again, and finally enticed him to leave the city, saying that he wished to meet him at a certain secret place and consult with him on a matter of his own. But on getting him in this way out of the city, he seized and carried him off to the camp, where he brought him before the generals. These, learning what the old man had said, sent him to the senate at Rome.
The prisoner here spoke freely. "If the lake overflow," he said, "and its waters run out into the sea, woe unto Rome; but if it be drawn off, and the waters reach the sea no longer, then it is woe unto Veii."
This he gave as the decree of the Fates; but the senate would not accept his words, and preferred to wait until the messengers should return from Delphi with the reply of the oracle.
When they did come, they confirmed what the old prophet had said. "See that the waters be not confined within the basin of the lake," was the message of Apollo's priestess: "see that they take not their own course and run into the sea. Thou shalt take the water out of the lake, and thou shalt turn it to the watering of the fields, and thou shalt make courses for it till it be spent and come to nothing."
What all this could possibly have to do with the siege of Veii the oracle did not say. But the people of the past were not given to ask such inconvenient questions. The oracle was supposed to know better than they, so workmen were sent with orders to bore through the sides of the hills and make a passage for the water. This tunnel was made, and the waters of the lake were drawn off, and divided into many courses, being given the duty of watering the fields of the Romans. In this way the water of the lake was all used up, and no drop of it flowed to the sea. Then the Romans knew that it was the will of the gods that Veii should be theirs.
Despite all this, the army of Rome must have met with serious difficulties and dangers at Veii, for the senate chose a dictator to conduct the war. This was their ablest and most famous man, Marcus Furius Camillus, a leader among the aristocrats, and a statesman of distinguished ability.
Under the command of Camillus the army hotly pressed the siege. So straitened became the Veientians that they sent envoys to Rome to beg for peace. The senate refused. In reply, one of the chief men of the embassy, who was a skilled prophet, rebuked the Romans for their arrogance, and predicted coming retribution.
"You heed neither the wrath of the gods nor the vengeance of men," he said. "Yet the gods shall requite you for your pride; as you destroy our country, so shall you shortly after lose your own."