The Etruscans now proceeded to lay siege to the city, which soon began to suffer from famine. Thereupon a young Roman, named C. Mucius, resolved to deliver his country by murdering the invading king. He accordingly went over to the Etruscan camp; but, ignorant of the person of Porsena, killed the royal secretary instead. Seized and threatened with torture, he thrust his right hand into the fire on the altar, and there let it burn, to show how little he heeded pain. Astonished at his courage, the king bade him depart in peace; and Mucius, out of gratitude, advised him to make peace with Rome, since three hundred noble youths, he said, had sworn to take the life of the king, and he was the first upon whom the lot had fallen. Mucius was henceforward called Scaevola, or the _Left-handed_, because his right hand had been burnt off. Porsena, alarmed for his life, which he could not secure against so many desperate men, forthwith offered peace to the Romans on condition of their restoring to the Veientines the land which they had taken from them. These terms were accepted, and Porsena withdrew his troops from the Janiculum after receiving ten youths and ten maidens as hostages from the Romans. Cloelia, one of the maidens, escaped from the Etruscan camp, and swam across the Tiber to Rome. She was sent back by the Romans to Porsena, who was so amazed at her courage that he not only set her at liberty, but allowed her to take with her those of the hostages whom she pleased. Thus ended the second attempt to restore the Tarquins by force.[12] After Porsena quitted Rome, Tarquin took refuge with his son-in-law, Octavius Mamilius, of Tusculum. The thirty Latin cities now espoused the cause of the exiled king, and declared war against Rome. The contest was decided by the battle of the Lake Regillus, which was long celebrated in Roman story, and the account of which resembles one of the battles in the Iliad. The Romans were commanded by the Dictator,[13] A. Postumius, and by T. AEbutius, the Master of the Horse; at the head of the Latins were Tarquin and Octavius Mamilius. The struggle was fierce and bloody, but the Latins at length fled. Almost all the chiefs on either side fell in the conflict, or were grievously wounded. Titus, the son of Tarquin, was killed; and the aged king was wounded, but escaped with his life. It was related in the old tradition that the Romans gained this battle by the assistance of the gods Castor and Pollux, who were seen charging the Latins at the head of the Roman cavalry, and who afterward carried to Rome the tidings of the victory. A temple was built in the forum on the spot where they appeared, and their festival was celebrated yearly.