When the knights had left, messengers were sent out to all the owners of castles in Radnor, Hereford, and Shropshire; bidding them assemble, in four days' time, at Ludlow. On the day of the meeting, nearly three hundred tenants and vassals presented themselves. To them Sir Edmund, having first inspected them and their arms, explained the situation. Then, each man was asked how many he could bring into the field, in accordance with the terms of his holding, and it was found the total amounted to nigh eight hundred men. "I know not when the affair is likely to begin; and will, therefore, call only for a quarter of your force. Send your sons and unmarried men. At the end of a month they can return to you and, if needs be, you can send as many more in their places. It may be that I shall not require these; but, possibly, every man may have to come out; but you must bear in mind it is not for the defence of this town and castle that men are required, for the garrison and burghers can hold out against any attack, but to save your homesteads from destruction." The news had created a deep sensation. Although none of those present had experienced the horrors of border warfare, there was not one but had heard, from their fathers, tales of burning, massacre, and wholesale destruction by the Welsh forays. But so long a time had passed, since the last serious insurrection, that the news that Wales might shortly be in arms, again, came as a terrible blow to them. All agreed to send in their proportion of men, at once, and to see that the rest were all ready to assemble, immediately the summons came. The next day some forty knights, owners of the castles thickly scattered through the border counties, assembled in Ludlow Castle. There was a long consultation. Arrangements were made for the despatch of messengers, by those nearest to the frontier, with news of any Welsh raid. Points were fixed upon where each should assemble, with what force he could gather; thence to march to any threatened place, or to assemble at Ludlow Castle, Mortimer being the warden of the marches along that line of the border. On the following day Sir Edmund rode, with two of his knights, to hold council with Lord Grey, at Ruthyn. The distance was considerable, and he was absent six days from his castle. Before he returned, an event happened that showed Glendower was in earnest, and intended to maintain his pretensions by the sword. At daybreak, on the third day after Mortimer had left, a messenger arrived at the castle; with news that a large body of Welsh had, the evening before, entered Radnor by the road across the hills from Llanidloes, and were marching towards Knighton, burning the villages as they went, and slaying all who fell into their hands.