The messengers bent down upon their knees. "Empress of Rome, all hail!"
"Ha, gentles," said the maiden, "ye bear the seeming of honorable men, and the badge of envoys: what mockery is this ye do to me?"
"We mock thee not, lady; but the Emperor of Rome hath seen thee in his sleep, and he has neither life nor spirit left because of thee. Thou shalt have of us therefore the choice, lady,—whether thou wilt go with us and be made Empress of Rome, or that the emperor come hither and take thee for his wife?"
"Ha, lords," said the maiden, "I will not deny what ye say, neither will I believe it too well. If the emperor love me, let him come here to seek me."
And by day and night the messengers hied them back. And when their horses failed, they bought other fresh ones. And when they came to Rome, they saluted the emperor, and asked their boon, which was given to them according as they named it. "We will be thy guides, lord," said they, "over sea and over land, to the place where is the woman whom best thou lovest; for we know her name, and her kindred, and her race."
And immediately the emperor set forth with his army. And these men were his guides. Towards the Island of Britain they went over the sea and the deep. And he conquered the island from Beli the son of Manogan, and his sons, and drove them to the sea, and went forward even unto Arvon. And the emperor knew the land when he saw it. And when he beheld the castle of Aber Sain, "Look yonder," said he, "there is the castle wherein I saw the damsel whom I best love." And he went forward into the castle and into the hall, and there he saw Kynan the son of Eudav, and Adeon the son of Eudav, playing at chess. And he saw Eudav the son of Caradawc sitting on a chair of ivory, carving chessmen. And the maiden whom he had beheld in his sleep he saw sitting on a chair of gold. "Empress of Rome," said he, "all hail!" And the emperor threw his arms about her neck; and she became his bride.
And the next day in the morning, the damsel asked her maiden portion. And he told her to name what she would. And she asked to have the Island of Britain for her father, from the Channel to the Irish Sea, together with the three adjacent islands, to hold under the Empress of Rome, and to have three chief castles made for her in whatever places she might choose in the Island of Britain. And she chose to have the highest castle made at Arvon. And they brought thither earth from Rome, that it might be more healthful for the emperor to sleep and sit and walk upon. After that, the two other castles were made for her, which were Caerlleon and Caermarthen.
And one day the emperor went to hunt at Caermarthen, and he came so far as the top of Brevi Vawr, and there the emperor pitched his tent. And that encamping place is called Cadeir Maxen, even to this day. And because that he built the castle with a myriad of men, he called it Caervyrddin. Then Helen bethought her to make high roads from one castle to another throughout the Island of Britain. And the roads were made. And for this cause are they called the Roads of Helen Luyddawc, that she was sprung from a native of this island; and the men of the Island of Britain would not have made these great roads for any save for her.
Seven years did the emperor tarry in this island. Now, at that time, the men of Rome had a custom, that whatsoever emperor should remain in other lands more than seven years should remain to his own overthrow, and should never return to Rome again.
So they made a new emperor. And this one wrote a letter of threat to Maxen. There was nought in the letter but only this: "If thou comest, and if thou ever comest to Rome." And even unto Caerlleon came this letter to Maxen, and these tidings. Then sent he a letter to the man who styled himself emperor in Rome. There was nought in that letter also but only this: "If I come to Rome, and if I come."