This action gained him immortal glory, for the Romans immediately crowned him, and conducted him into the city with songs, as one of the heroes; and all the inhabitants ran out of their houses, desiring to have the last sight of him before he died, for it was thought he could not long survive his wounds. And when he was recovered, the people erected a brazen statue of him all armed, in the most conspicuous part of the Forum, and gave him as much of the public land as he himself could plough around in one day with a yoke of oxen. Besides these things bestowed upon him by the public, every particular man and woman in the city, at a time when they were all the most oppressed by a dreadful scarcity of necessary provisions, gave him as much as would maintain each of them one day, the number of people in the whole amounting to more than three hundred thousand. Thus Horatius, who had shown so great valour upon that occasion, was looked upon by the Romans with all possible admiration; but rendered useless by his lameness in the subsequent affairs of the commonwealth, and by reason of his calamity, he obtained neither the consulship nor any other military command.
But the Etruscans still lay before the city, and the Romans suffered much from hunger. Then a young man of noble blood, Caius Mucius by name, went to the senate, and offered to go to the camp of the Etruscans, and to slay King Porsenna. So he crossed the river and made his way into the camp, and there he saw a man sitting on a high place, and wearing a scarlet robe, and many coming and going about him; and, saying to himself, “This must be King Porsenna,” he went up to his seat amidst the crowd, and when he came near to the man he drew a dagger from under his garment, and stabbed him. But it was the king’s scribe whom he had slain, who was the king’s chief officer; so he was seized and brought before the king, and the guards threatened him with sharp torments, unless he would answer all their questions. But he said, “See now, how little I care for your torments”; and he thrust his right hand into the fire that was burning there on the altar, and he did not move it till it was quite consumed. Then King Porsenna marvelled at his courage, and said, “Go thy way, for thou hast harmed thyself more than me; and thou art a brave man, and I send thee back to Rome unhurt and free.” But Caius answered, “For this thou shalt get more of my secret than thy tortures could have forced from me. Three hundred noble youths of Rome have bound themselves by oath to take thy life. Mine was the first adventure; but the others will each in his turn lie in wait for thee. I warn thee therefore to look to thyself well.” Then Caius was let go, and went back again into the city.
But King Porsenna was greatly moved, and made the Romans offers of peace, to which they listened gladly, and gave up the land beyond the Tiber which had been won in former times from the Veientines; and he gave back to them the hill Janiculum. Besides this the Romans gave hostages to the king, ten youths and ten maidens, children of noble fathers, as a pledge that they would truly keep the peace which they had made. But it chanced as the camp of the Etruscans was near the Tiber, that Clœlia, one of the maidens, escaped with her fellows and fled to the brink of the river, and as the Etruscans pursued them, Clœlia spoke to the other maidens, and persuaded them, and they rushed all into the water, and swam across the river, and got safely over. At this King Porsenna marvelled more than ever, and when the Romans sent back Clœlia and her fellows to him, for they kept their faith truly, he bade her go home free, and he gave her some of the youths also who were hostages, to choose whom she would; and she chose those who were of tenderest age, and King Porsenna set them free. Then the Romans gave lands to Caius, and set up a statue of Clœlia in the highest part of the Sacred Way; and King Porsenna led away his army home in peace.
After this King Porsenna made war against the Latins, and his army was beaten, and fled to Rome; and the Romans received them kindly, and took care of those who were wounded, and sent them back safe to King Porsenna. For this the king gave back to the Romans all the rest of their hostages whom he had still with him, and also the land which they had won from the Veientines. So Tarquinius, seeing that there was no more hope of aid from King Porsenna, left Clusium and went to Tusculum of the Latins; for Octavius Mamilius, the chief of the Tusculans, had married his daughter, and he hoped that the Latins would restore him to Rome, for their cities were many, and when he had been king he had favoured them rather than the Romans.