This was all thus spoken, but it was soon known. Spies went over the king's host, and heard say sooth words, whither Arthur would send the knights that he had in bonds; and the spies forthright proceeded forth by night, until they came soon to the emperor of Rome, and told all their tale, how these four earls should march, and lead forth Petreius to the burgh of Paris; and all they told the way that in to Paris lay, and where men might them intercept in a deep valley, and take from them Petreius the noble man, and the four earls conquer, and fast them bind. Luces heard this, the emperor of Rome, and he leapt to weapon as it were a lion; and ordered ten thousand chosen knights to horse and to arms, quickly forwards to march. He called Sextonus, of Lybia he was king, of Turkey duke; he sent after Evander, who from Babylon was come there; he called to the senators Bal, Catel, and Carnus,--these were all of royal birth, and these were all chosen,—-promptly to ride, and to liberate Petreius. Anon as it was even forth they marched; twelve knights them led of the people that were exceeding wary, and knew the ways. When the Rome-folk rode, resounded burnies; they set on their heads high helms; shields on their backs—-the valiant Rome-folk. They marched all night, exceedingly fast, until they came in the way that into Paris lay; then were they before, and the Britons behind. But alas! that Cador the keen knew it not, that the Rome-folk had before rode them! They came in a wood, in a spot exceeding fair, in a deep dale, dark on the sides; they swore between them, that there they would engage. There they lay still a little while; and it gan to dawn, and the beasts gan to stir. Then came Arthur's men advancing by way, right the same way where the other host lay; they rode singing—the men were blithe! Nevertheless Cador was there, most wise and most wary; he and Borel the earl rich, advanced them together, and took between them five hundred knights, and marched before, weaponed champions. Richer and Beduer came behind them there, and led the knights, whom they had captured, Petreius and his companions, who were taken. Then came they riding upon the Rome-folk; and the Rome-folk rushed towards them with fierce strength, and smote on the Britons with exceeding bitter blows; brake the Britons' ranks--mischief was among the folk--the wood gan resound, warriors there fell! The Britons withstood them, and strongly defended themselves. Richer heard that, and the earl Beduer, how their comrades before them fought. Petreius they took, and all their prisoners, and with three hundred swains sent them into the wood. And they themselves advanced toward their comrades, and smote on the Rome-folk with fierce strength; there was many a blow given, and many a man there was slain. Then perceived Evander, who was a heathen king most wary, that their folk gan wax, and the Britons gan wane; and his best knights approached them together, and advanced upon the Britons,