the sorceresses slew one of Arthur's men before Peredur's face, and Peredur bade her forbear. And the sorceress slew a man before Peredur's face a second time, and a second time he forbade her. And the third time the sorceress slew a man before the face of Peredur, and then Peredur drew his sword, and smote the sorceress on the helmet, and all her head armour was split in two parts. And she set up a cry, and desired the other sorceresses to flee, and told them that this was Peredur, the man who had learnt Chivalry with them, and by whom they were destined to be slain. Then Arthur and his household fell upon the sorceresses, and slew the sorceresses of Gloucester every one And thus is it related concerning the Castle of Wonders. THE DREAM OF RHONABWY. Madawc the son of Maredudd possessed Powys within its boundaries, from Porfoed to Gwauan in the uplands of Arwystli. And at that time he had a brother, Iorwerth the son of Maredudd, in rank not equal to himself. And Iorwerth had great sorrow and heaviness because of the honour and power that his brother enjoyed, which he shared not. And he sought his fellows and his foster-brothers, and took counsel with them what he should do in this matter. And they resolved to despatch some of their number to go and seek a maintenance for him. Then Madawc offered him to become Master of the Household and to have horses, and arms, and honour, and to fare like as himself. But Iorwerth refused this. And Iorwerth made an inroad into England, slaying the inhabitants, and burning houses, and carrying away prisoners. And Madawc took counsel with the men of Powys, and they determined to place an hundred men in each of the three Commots of Powys to seek for him. And thus did they in the plains of Powys from Aber Ceirawc, and in Allictwn Ver, and in Rhyd Wilure, on the Vyrnwy, the three best Commots of Powys. So he was none the better, he nor his household, in Powys, nor in the plains thereof. {108} And they spread these men over the plains as far as Nillystwn Trevan.